taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
234670D8EEC55695B332182837CBF9B3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545739	http://doi.org/10.3897/phytokeys.178.64426.figure7	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
4A87A68D2A7D5446B99CF1FF014E0585.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545736	http://doi.org/10.3897/phytokeys.178.64426.figure4	Figure 4. SEM (A, B and E-H) and LM (C, D) images of species found in the transitional zone at Mykolaiv city: A-D Pleurosira laevis A, C valve views with arrows shown the ocelli B girdle view E Conticribra weissflogii, valve view with arrows shown central and marginal fultoportulae F Thalassiosira incerta, valve view with arrow shown central fultoportulae G Thalassiosira faurii, valve view H Minidiscus proschkinae, valve view with arrow in the centre shown central fultoportula, and closer to the edge - rimoportula. Scale bars: 10 μm (C-G); 30 μm (A); 50 μm (B); 3 μm (H).	Figure 4. SEM (A, B and E-H) and LM (C, D) images of species found in the transitional zone at Mykolaiv city: A-D Pleurosira laevis A, C valve views with arrows shown the ocelli B girdle view E Conticribra weissflogii, valve view with arrows shown central and marginal fultoportulae F Thalassiosira incerta, valve view with arrow shown central fultoportulae G Thalassiosira faurii, valve view H Minidiscus proschkinae, valve view with arrow in the centre shown central fultoportula, and closer to the edge - rimoportula. Scale bars: 10 μm (C-G); 30 μm (A); 50 μm (B); 3 μm (H).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
E8CC21D03F1A52259F248FF5A667C776.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545736	http://doi.org/10.3897/phytokeys.178.64426.figure4	Figure 4. SEM (A, B and E-H) and LM (C, D) images of species found in the transitional zone at Mykolaiv city: A-D Pleurosira laevis A, C valve views with arrows shown the ocelli B girdle view E Conticribra weissflogii, valve view with arrows shown central and marginal fultoportulae F Thalassiosira incerta, valve view with arrow shown central fultoportulae G Thalassiosira faurii, valve view H Minidiscus proschkinae, valve view with arrow in the centre shown central fultoportula, and closer to the edge - rimoportula. Scale bars: 10 μm (C-G); 30 μm (A); 50 μm (B); 3 μm (H).	Figure 4. SEM (A, B and E-H) and LM (C, D) images of species found in the transitional zone at Mykolaiv city: A-D Pleurosira laevis A, C valve views with arrows shown the ocelli B girdle view E Conticribra weissflogii, valve view with arrows shown central and marginal fultoportulae F Thalassiosira incerta, valve view with arrow shown central fultoportulae G Thalassiosira faurii, valve view H Minidiscus proschkinae, valve view with arrow in the centre shown central fultoportula, and closer to the edge - rimoportula. Scale bars: 10 μm (C-G); 30 μm (A); 50 μm (B); 3 μm (H).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
E8CC21D03F1A52259F248FF5A667C776.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545737	http://doi.org/10.3897/phytokeys.178.64426.figure5	Figure 5. SEM images of species found in the transitional zone at Mykolaiv city (A, B, E-H valve views, C, D girdle views): A Minidiscus proschkinae with arrows showing rimoportula and marginal fultoportula B-D Skeletonema subsalsum with arrows showing marginal fultoportulae E Stephanodiscus hantzschii with arrow shown spines F Stephanodiscus makarovae with arrows showing marginal and central fultoportulae G, H Stephanodiscus minutulus with arrows showing spines and central fultoportula. Scale bars: 3 μm (A); 4 μm (B, F, H); 5 μm (C, D, G); 10 μm (E).	Figure 5. SEM images of species found in the transitional zone at Mykolaiv city (A, B, E-H valve views, C, D girdle views): A Minidiscus proschkinae with arrows showing rimoportula and marginal fultoportula B-D Skeletonema subsalsum with arrows showing marginal fultoportulae E Stephanodiscus hantzschii with arrow shown spines F Stephanodiscus makarovae with arrows showing marginal and central fultoportulae G, H Stephanodiscus minutulus with arrows showing spines and central fultoportula. Scale bars: 3 μm (A); 4 μm (B, F, H); 5 μm (C, D, G); 10 μm (E).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
AC3606D4CFAB50B7A11B1C57677A76DB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545736	http://doi.org/10.3897/phytokeys.178.64426.figure4	Figure 4. SEM (A, B and E-H) and LM (C, D) images of species found in the transitional zone at Mykolaiv city: A-D Pleurosira laevis A, C valve views with arrows shown the ocelli B girdle view E Conticribra weissflogii, valve view with arrows shown central and marginal fultoportulae F Thalassiosira incerta, valve view with arrow shown central fultoportulae G Thalassiosira faurii, valve view H Minidiscus proschkinae, valve view with arrow in the centre shown central fultoportula, and closer to the edge - rimoportula. Scale bars: 10 μm (C-G); 30 μm (A); 50 μm (B); 3 μm (H).	Figure 4. SEM (A, B and E-H) and LM (C, D) images of species found in the transitional zone at Mykolaiv city: A-D Pleurosira laevis A, C valve views with arrows shown the ocelli B girdle view E Conticribra weissflogii, valve view with arrows shown central and marginal fultoportulae F Thalassiosira incerta, valve view with arrow shown central fultoportulae G Thalassiosira faurii, valve view H Minidiscus proschkinae, valve view with arrow in the centre shown central fultoportula, and closer to the edge - rimoportula. Scale bars: 10 μm (C-G); 30 μm (A); 50 μm (B); 3 μm (H).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
253E3A753E56591BA103B0980817E9A9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545736	http://doi.org/10.3897/phytokeys.178.64426.figure4	Figure 4. SEM (A, B and E-H) and LM (C, D) images of species found in the transitional zone at Mykolaiv city: A-D Pleurosira laevis A, C valve views with arrows shown the ocelli B girdle view E Conticribra weissflogii, valve view with arrows shown central and marginal fultoportulae F Thalassiosira incerta, valve view with arrow shown central fultoportulae G Thalassiosira faurii, valve view H Minidiscus proschkinae, valve view with arrow in the centre shown central fultoportula, and closer to the edge - rimoportula. Scale bars: 10 μm (C-G); 30 μm (A); 50 μm (B); 3 μm (H).	Figure 4. SEM (A, B and E-H) and LM (C, D) images of species found in the transitional zone at Mykolaiv city: A-D Pleurosira laevis A, C valve views with arrows shown the ocelli B girdle view E Conticribra weissflogii, valve view with arrows shown central and marginal fultoportulae F Thalassiosira incerta, valve view with arrow shown central fultoportulae G Thalassiosira faurii, valve view H Minidiscus proschkinae, valve view with arrow in the centre shown central fultoportula, and closer to the edge - rimoportula. Scale bars: 10 μm (C-G); 30 μm (A); 50 μm (B); 3 μm (H).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
C11EEE8559855D70926728DEB02E1993.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545737	http://doi.org/10.3897/phytokeys.178.64426.figure5	Figure 5. SEM images of species found in the transitional zone at Mykolaiv city (A, B, E-H valve views, C, D girdle views): A Minidiscus proschkinae with arrows showing rimoportula and marginal fultoportula B-D Skeletonema subsalsum with arrows showing marginal fultoportulae E Stephanodiscus hantzschii with arrow shown spines F Stephanodiscus makarovae with arrows showing marginal and central fultoportulae G, H Stephanodiscus minutulus with arrows showing spines and central fultoportula. Scale bars: 3 μm (A); 4 μm (B, F, H); 5 μm (C, D, G); 10 μm (E).	Figure 5. SEM images of species found in the transitional zone at Mykolaiv city (A, B, E-H valve views, C, D girdle views): A Minidiscus proschkinae with arrows showing rimoportula and marginal fultoportula B-D Skeletonema subsalsum with arrows showing marginal fultoportulae E Stephanodiscus hantzschii with arrow shown spines F Stephanodiscus makarovae with arrows showing marginal and central fultoportulae G, H Stephanodiscus minutulus with arrows showing spines and central fultoportula. Scale bars: 3 μm (A); 4 μm (B, F, H); 5 μm (C, D, G); 10 μm (E).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
D62072E20FAA52A1B0EA8932B895C2DC.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545737	http://doi.org/10.3897/phytokeys.178.64426.figure5	Figure 5. SEM images of species found in the transitional zone at Mykolaiv city (A, B, E-H valve views, C, D girdle views): A Minidiscus proschkinae with arrows showing rimoportula and marginal fultoportula B-D Skeletonema subsalsum with arrows showing marginal fultoportulae E Stephanodiscus hantzschii with arrow shown spines F Stephanodiscus makarovae with arrows showing marginal and central fultoportulae G, H Stephanodiscus minutulus with arrows showing spines and central fultoportula. Scale bars: 3 μm (A); 4 μm (B, F, H); 5 μm (C, D, G); 10 μm (E).	Figure 5. SEM images of species found in the transitional zone at Mykolaiv city (A, B, E-H valve views, C, D girdle views): A Minidiscus proschkinae with arrows showing rimoportula and marginal fultoportula B-D Skeletonema subsalsum with arrows showing marginal fultoportulae E Stephanodiscus hantzschii with arrow shown spines F Stephanodiscus makarovae with arrows showing marginal and central fultoportulae G, H Stephanodiscus minutulus with arrows showing spines and central fultoportula. Scale bars: 3 μm (A); 4 μm (B, F, H); 5 μm (C, D, G); 10 μm (E).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
F7849DE942DC53DAABB276945D6B1C0C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545737	http://doi.org/10.3897/phytokeys.178.64426.figure5	Figure 5. SEM images of species found in the transitional zone at Mykolaiv city (A, B, E-H valve views, C, D girdle views): A Minidiscus proschkinae with arrows showing rimoportula and marginal fultoportula B-D Skeletonema subsalsum with arrows showing marginal fultoportulae E Stephanodiscus hantzschii with arrow shown spines F Stephanodiscus makarovae with arrows showing marginal and central fultoportulae G, H Stephanodiscus minutulus with arrows showing spines and central fultoportula. Scale bars: 3 μm (A); 4 μm (B, F, H); 5 μm (C, D, G); 10 μm (E).	Figure 5. SEM images of species found in the transitional zone at Mykolaiv city (A, B, E-H valve views, C, D girdle views): A Minidiscus proschkinae with arrows showing rimoportula and marginal fultoportula B-D Skeletonema subsalsum with arrows showing marginal fultoportulae E Stephanodiscus hantzschii with arrow shown spines F Stephanodiscus makarovae with arrows showing marginal and central fultoportulae G, H Stephanodiscus minutulus with arrows showing spines and central fultoportula. Scale bars: 3 μm (A); 4 μm (B, F, H); 5 μm (C, D, G); 10 μm (E).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
BC68D1C9F0405D348E5F1E436D20D327.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545734	http://doi.org/10.3897/phytokeys.178.64426.figure2	Figure 2. SEM (A-D, H) and LM (E-G) images of species found in the transitional zone at Mykolaiv city: A-G Melosira subglobosa (A, F girdle views, B-E, G, valve views) H Melosira varians, partial valve view and girdle view of complete frustule. Scale bars: 10 μm (A-C, E-H); 20 μm (D).	Figure 2. SEM (A-D, H) and LM (E-G) images of species found in the transitional zone at Mykolaiv city: A-G Melosira subglobosa (A, F girdle views, B-E, G, valve views) H Melosira varians, partial valve view and girdle view of complete frustule. Scale bars: 10 μm (A-C, E-H); 20 μm (D).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
CD1BB2E304B25DF39ECF47CA39D59AC4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545734	http://doi.org/10.3897/phytokeys.178.64426.figure2	Figure 2. SEM (A-D, H) and LM (E-G) images of species found in the transitional zone at Mykolaiv city: A-G Melosira subglobosa (A, F girdle views, B-E, G, valve views) H Melosira varians, partial valve view and girdle view of complete frustule. Scale bars: 10 μm (A-C, E-H); 20 μm (D).	Figure 2. SEM (A-D, H) and LM (E-G) images of species found in the transitional zone at Mykolaiv city: A-G Melosira subglobosa (A, F girdle views, B-E, G, valve views) H Melosira varians, partial valve view and girdle view of complete frustule. Scale bars: 10 μm (A-C, E-H); 20 μm (D).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
07D5A7448BC8527F82757BDF62DB5426.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545735	http://doi.org/10.3897/phytokeys.178.64426.figure3	Figure 3. LM (A, B) and SEM (C-H) images of species found in the transitional zone at Mykolaiv city: A Aulacoseira islandica, valve view B Aulacoseira nivalis, valve view C Aulacoseira subarctica, girdle view of complete frustule D-H Actinocyclus normanii valve view (D pseudonodulus shown with arrow, E, G) and girdle view (H, F). Scale bars: 10 μm.	Figure 3. LM (A, B) and SEM (C-H) images of species found in the transitional zone at Mykolaiv city: A Aulacoseira islandica, valve view B Aulacoseira nivalis, valve view C Aulacoseira subarctica, girdle view of complete frustule D-H Actinocyclus normanii valve view (D pseudonodulus shown with arrow, E, G) and girdle view (H, F). Scale bars: 10 μm.	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
195F3D4A4BC65BCEBA579BCA1C204527.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545735	http://doi.org/10.3897/phytokeys.178.64426.figure3	Figure 3. LM (A, B) and SEM (C-H) images of species found in the transitional zone at Mykolaiv city: A Aulacoseira islandica, valve view B Aulacoseira nivalis, valve view C Aulacoseira subarctica, girdle view of complete frustule D-H Actinocyclus normanii valve view (D pseudonodulus shown with arrow, E, G) and girdle view (H, F). Scale bars: 10 μm.	Figure 3. LM (A, B) and SEM (C-H) images of species found in the transitional zone at Mykolaiv city: A Aulacoseira islandica, valve view B Aulacoseira nivalis, valve view C Aulacoseira subarctica, girdle view of complete frustule D-H Actinocyclus normanii valve view (D pseudonodulus shown with arrow, E, G) and girdle view (H, F). Scale bars: 10 μm.	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
0444550A6D0955C9BD0BC0F684DADD0E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545737	http://doi.org/10.3897/phytokeys.178.64426.figure5	Figure 5. SEM images of species found in the transitional zone at Mykolaiv city (A, B, E-H valve views, C, D girdle views): A Minidiscus proschkinae with arrows showing rimoportula and marginal fultoportula B-D Skeletonema subsalsum with arrows showing marginal fultoportulae E Stephanodiscus hantzschii with arrow shown spines F Stephanodiscus makarovae with arrows showing marginal and central fultoportulae G, H Stephanodiscus minutulus with arrows showing spines and central fultoportula. Scale bars: 3 μm (A); 4 μm (B, F, H); 5 μm (C, D, G); 10 μm (E).	Figure 5. SEM images of species found in the transitional zone at Mykolaiv city (A, B, E-H valve views, C, D girdle views): A Minidiscus proschkinae with arrows showing rimoportula and marginal fultoportula B-D Skeletonema subsalsum with arrows showing marginal fultoportulae E Stephanodiscus hantzschii with arrow shown spines F Stephanodiscus makarovae with arrows showing marginal and central fultoportulae G, H Stephanodiscus minutulus with arrows showing spines and central fultoportula. Scale bars: 3 μm (A); 4 μm (B, F, H); 5 μm (C, D, G); 10 μm (E).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
0444550A6D0955C9BD0BC0F684DADD0E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545738	http://doi.org/10.3897/phytokeys.178.64426.figure6	Figure 6. SEM (A-F, H) and LM images (G) of species found in the transitional zone at Mykolaiv city, valve views: A Stephanodiscus minutulus with arrows shown marginal and central fultoportulae B, C Cyclotella atomus var. atomus with arrows shown marginal and central fultoportulae D-F Cyclotella atomus var. gracilis with arrows shown marginal and central fultoportulae on D picture, only central fultoportula on E and central fultoportula and alveolae on (F) G Cyclotella choctawhatcheeana with arrow shown central fultoportulae H Cyclotella cryptica with arrows shown marginal and central fultoportulae. Scale bars: 3 μm (B, C); 4 μm (D, F); 5 μm (A, E, H); 10 μm (G).	Figure 6. SEM (A-F, H) and LM images (G) of species found in the transitional zone at Mykolaiv city, valve views: A Stephanodiscus minutulus with arrows shown marginal and central fultoportulae B, C Cyclotella atomus var. atomus with arrows shown marginal and central fultoportulae D-F Cyclotella atomus var. gracilis with arrows shown marginal and central fultoportulae on D picture, only central fultoportula on E and central fultoportula and alveolae on (F) G Cyclotella choctawhatcheeana with arrow shown central fultoportulae H Cyclotella cryptica with arrows shown marginal and central fultoportulae. Scale bars: 3 μm (B, C); 4 μm (D, F); 5 μm (A, E, H); 10 μm (G).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
8A17A8A89F4C5C1D866045680D1A8083.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545738	http://doi.org/10.3897/phytokeys.178.64426.figure6	Figure 6. SEM (A-F, H) and LM images (G) of species found in the transitional zone at Mykolaiv city, valve views: A Stephanodiscus minutulus with arrows shown marginal and central fultoportulae B, C Cyclotella atomus var. atomus with arrows shown marginal and central fultoportulae D-F Cyclotella atomus var. gracilis with arrows shown marginal and central fultoportulae on D picture, only central fultoportula on E and central fultoportula and alveolae on (F) G Cyclotella choctawhatcheeana with arrow shown central fultoportulae H Cyclotella cryptica with arrows shown marginal and central fultoportulae. Scale bars: 3 μm (B, C); 4 μm (D, F); 5 μm (A, E, H); 10 μm (G).	Figure 6. SEM (A-F, H) and LM images (G) of species found in the transitional zone at Mykolaiv city, valve views: A Stephanodiscus minutulus with arrows shown marginal and central fultoportulae B, C Cyclotella atomus var. atomus with arrows shown marginal and central fultoportulae D-F Cyclotella atomus var. gracilis with arrows shown marginal and central fultoportulae on D picture, only central fultoportula on E and central fultoportula and alveolae on (F) G Cyclotella choctawhatcheeana with arrow shown central fultoportulae H Cyclotella cryptica with arrows shown marginal and central fultoportulae. Scale bars: 3 μm (B, C); 4 μm (D, F); 5 μm (A, E, H); 10 μm (G).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
89E297358E805FAE8A899FCEF001308E.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545735	http://doi.org/10.3897/phytokeys.178.64426.figure3	Figure 3. LM (A, B) and SEM (C-H) images of species found in the transitional zone at Mykolaiv city: A Aulacoseira islandica, valve view B Aulacoseira nivalis, valve view C Aulacoseira subarctica, girdle view of complete frustule D-H Actinocyclus normanii valve view (D pseudonodulus shown with arrow, E, G) and girdle view (H, F). Scale bars: 10 μm.	Figure 3. LM (A, B) and SEM (C-H) images of species found in the transitional zone at Mykolaiv city: A Aulacoseira islandica, valve view B Aulacoseira nivalis, valve view C Aulacoseira subarctica, girdle view of complete frustule D-H Actinocyclus normanii valve view (D pseudonodulus shown with arrow, E, G) and girdle view (H, F). Scale bars: 10 μm.	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
75AAF112DFEB55EAA2C6FED25FCCF265.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545736	http://doi.org/10.3897/phytokeys.178.64426.figure4	Figure 4. SEM (A, B and E-H) and LM (C, D) images of species found in the transitional zone at Mykolaiv city: A-D Pleurosira laevis A, C valve views with arrows shown the ocelli B girdle view E Conticribra weissflogii, valve view with arrows shown central and marginal fultoportulae F Thalassiosira incerta, valve view with arrow shown central fultoportulae G Thalassiosira faurii, valve view H Minidiscus proschkinae, valve view with arrow in the centre shown central fultoportula, and closer to the edge - rimoportula. Scale bars: 10 μm (C-G); 30 μm (A); 50 μm (B); 3 μm (H).	Figure 4. SEM (A, B and E-H) and LM (C, D) images of species found in the transitional zone at Mykolaiv city: A-D Pleurosira laevis A, C valve views with arrows shown the ocelli B girdle view E Conticribra weissflogii, valve view with arrows shown central and marginal fultoportulae F Thalassiosira incerta, valve view with arrow shown central fultoportulae G Thalassiosira faurii, valve view H Minidiscus proschkinae, valve view with arrow in the centre shown central fultoportula, and closer to the edge - rimoportula. Scale bars: 10 μm (C-G); 30 μm (A); 50 μm (B); 3 μm (H).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
FC8618A4C300549FA0FB42B068B05478.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545738	http://doi.org/10.3897/phytokeys.178.64426.figure6	Figure 6. SEM (A-F, H) and LM images (G) of species found in the transitional zone at Mykolaiv city, valve views: A Stephanodiscus minutulus with arrows shown marginal and central fultoportulae B, C Cyclotella atomus var. atomus with arrows shown marginal and central fultoportulae D-F Cyclotella atomus var. gracilis with arrows shown marginal and central fultoportulae on D picture, only central fultoportula on E and central fultoportula and alveolae on (F) G Cyclotella choctawhatcheeana with arrow shown central fultoportulae H Cyclotella cryptica with arrows shown marginal and central fultoportulae. Scale bars: 3 μm (B, C); 4 μm (D, F); 5 μm (A, E, H); 10 μm (G).	Figure 6. SEM (A-F, H) and LM images (G) of species found in the transitional zone at Mykolaiv city, valve views: A Stephanodiscus minutulus with arrows shown marginal and central fultoportulae B, C Cyclotella atomus var. atomus with arrows shown marginal and central fultoportulae D-F Cyclotella atomus var. gracilis with arrows shown marginal and central fultoportulae on D picture, only central fultoportula on E and central fultoportula and alveolae on (F) G Cyclotella choctawhatcheeana with arrow shown central fultoportulae H Cyclotella cryptica with arrows shown marginal and central fultoportulae. Scale bars: 3 μm (B, C); 4 μm (D, F); 5 μm (A, E, H); 10 μm (G).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
4ACFEC91171555BDA2671C6BA0DA6759.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545739	http://doi.org/10.3897/phytokeys.178.64426.figure7	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
91130038E4C65C9681F0A2DF63C16419.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545739	http://doi.org/10.3897/phytokeys.178.64426.figure7	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
1ACFE8F899EB591B97F96551749199D7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545735	http://doi.org/10.3897/phytokeys.178.64426.figure3	Figure 3. LM (A, B) and SEM (C-H) images of species found in the transitional zone at Mykolaiv city: A Aulacoseira islandica, valve view B Aulacoseira nivalis, valve view C Aulacoseira subarctica, girdle view of complete frustule D-H Actinocyclus normanii valve view (D pseudonodulus shown with arrow, E, G) and girdle view (H, F). Scale bars: 10 μm.	Figure 3. LM (A, B) and SEM (C-H) images of species found in the transitional zone at Mykolaiv city: A Aulacoseira islandica, valve view B Aulacoseira nivalis, valve view C Aulacoseira subarctica, girdle view of complete frustule D-H Actinocyclus normanii valve view (D pseudonodulus shown with arrow, E, G) and girdle view (H, F). Scale bars: 10 μm.	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
A1B2DA94A46C513BAF59405D68801B1A.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545738	http://doi.org/10.3897/phytokeys.178.64426.figure6	Figure 6. SEM (A-F, H) and LM images (G) of species found in the transitional zone at Mykolaiv city, valve views: A Stephanodiscus minutulus with arrows shown marginal and central fultoportulae B, C Cyclotella atomus var. atomus with arrows shown marginal and central fultoportulae D-F Cyclotella atomus var. gracilis with arrows shown marginal and central fultoportulae on D picture, only central fultoportula on E and central fultoportula and alveolae on (F) G Cyclotella choctawhatcheeana with arrow shown central fultoportulae H Cyclotella cryptica with arrows shown marginal and central fultoportulae. Scale bars: 3 μm (B, C); 4 μm (D, F); 5 μm (A, E, H); 10 μm (G).	Figure 6. SEM (A-F, H) and LM images (G) of species found in the transitional zone at Mykolaiv city, valve views: A Stephanodiscus minutulus with arrows shown marginal and central fultoportulae B, C Cyclotella atomus var. atomus with arrows shown marginal and central fultoportulae D-F Cyclotella atomus var. gracilis with arrows shown marginal and central fultoportulae on D picture, only central fultoportula on E and central fultoportula and alveolae on (F) G Cyclotella choctawhatcheeana with arrow shown central fultoportulae H Cyclotella cryptica with arrows shown marginal and central fultoportulae. Scale bars: 3 μm (B, C); 4 μm (D, F); 5 μm (A, E, H); 10 μm (G).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
644DEB0656205EB487DC05FC7DCF59F7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545738	http://doi.org/10.3897/phytokeys.178.64426.figure6	Figure 6. SEM (A-F, H) and LM images (G) of species found in the transitional zone at Mykolaiv city, valve views: A Stephanodiscus minutulus with arrows shown marginal and central fultoportulae B, C Cyclotella atomus var. atomus with arrows shown marginal and central fultoportulae D-F Cyclotella atomus var. gracilis with arrows shown marginal and central fultoportulae on D picture, only central fultoportula on E and central fultoportula and alveolae on (F) G Cyclotella choctawhatcheeana with arrow shown central fultoportulae H Cyclotella cryptica with arrows shown marginal and central fultoportulae. Scale bars: 3 μm (B, C); 4 μm (D, F); 5 μm (A, E, H); 10 μm (G).	Figure 6. SEM (A-F, H) and LM images (G) of species found in the transitional zone at Mykolaiv city, valve views: A Stephanodiscus minutulus with arrows shown marginal and central fultoportulae B, C Cyclotella atomus var. atomus with arrows shown marginal and central fultoportulae D-F Cyclotella atomus var. gracilis with arrows shown marginal and central fultoportulae on D picture, only central fultoportula on E and central fultoportula and alveolae on (F) G Cyclotella choctawhatcheeana with arrow shown central fultoportulae H Cyclotella cryptica with arrows shown marginal and central fultoportulae. Scale bars: 3 μm (B, C); 4 μm (D, F); 5 μm (A, E, H); 10 μm (G).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
644DEB0656205EB487DC05FC7DCF59F7.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545739	http://doi.org/10.3897/phytokeys.178.64426.figure7	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
63DA2B6171D15D5687E0F84A27FE4B60.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545739	http://doi.org/10.3897/phytokeys.178.64426.figure7	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
78ABD88973645856B1F009A6FBE38C22.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/545739	http://doi.org/10.3897/phytokeys.178.64426.figure7	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	Figure 7. SEM (A-E, G, H) and LM images (F) of species found in the transitional zone at Mykolaiv city, valve views: A Cyclotella cryptica B Cyclotella marina C, D Cyclotella meduanae E, F Cyclotella meneghiniana G Cyclostephanos dubius H Cyclostephanos invisitatus, with arrows shown on A, D, H marginal and central fultoportulae, B marginal fultoportulae, F central fultoportulae. Scale bars: 2 μm (B, D); 4 μm (A); 5 μm (C, E); 10 μm (F-H).	2021-05-20	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine		Zenodo	biologists	Bilous, Olena P.;Genkal, Sergey I.;Zimmermann, Jonas;Kusber, Wolf-Henning;Jahn, Regine			
