taxonID	type	description	language	source
3B728792FF93FFFFB9F2FE00E903FA00.taxon	etymology	Derivation of name: From the Greek words: ‘ eos’, meaning ‘ dawn, early’; ‘ adruptos’, meaning ‘ tearing’; and ‘ Lamna ’, meaning ‘ modern lamniform shark’, in allusion to the early occurrence and tearing-type dentition of this lamniform.	en	Kriwet, Jürgen, Klug, Stefanie, Canudo, José I., Cuenca-Bescos, Gloria (2008): A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii). Zoological Journal of the Linnean Society 154 (2): 278-290, DOI: 10.1111/j.1096-3642.2008.00410.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00410.x
3B728792FF93FFFFB9F2FE00E903FA00.taxon	type_taxon	Type species: Eoptolamna eccentrolopha gen. et sp. nov.	en	Kriwet, Jürgen, Klug, Stefanie, Canudo, José I., Cuenca-Bescos, Gloria (2008): A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii). Zoological Journal of the Linnean Society 154 (2): 278-290, DOI: 10.1111/j.1096-3642.2008.00410.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00410.x
3B728792FF93FFFFB9F2FE00E903FA00.taxon	diagnosis	Generic diagnosis: Eoptolamnids with the following characteristics: tooth crown faces with distinct vertical median crest extending from cusp – root junction almost to apex; few additional shorter and flexuous ridges present; well-developed lateral cusplets broadly united with main cusp, stronger inclined lingually than main cusp, and in front of labial cusp plane in profile view; lingual face of main cusp strongly cambered; cutting edges well developed and continuous; labial basal sledge smooth, delineating a short and narrow concavity; root high and coalescing in upper parts, free in lower part; lingual protuberance well developed, but low; nutritive groove narrow and marked in teeth of juveniles, more faint and almost completely closed in adults. Differential diagnosis: The teeth of Eoptolamna gen. nov. distinctly differ from all other lamniforms in the presence of a faint, almost completely closed nutritive groove in the teeth of adult individuals, which is marked in juveniles.	en	Kriwet, Jürgen, Klug, Stefanie, Canudo, José I., Cuenca-Bescos, Gloria (2008): A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii). Zoological Journal of the Linnean Society 154 (2): 278-290, DOI: 10.1111/j.1096-3642.2008.00410.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00410.x
3B728792FF93FFFFBB6FF996EED5FE3D.taxon	etymology	Derivation of name: Derived from the name of the type genus, Eoptolamna gen. nov.	en	Kriwet, Jürgen, Klug, Stefanie, Canudo, José I., Cuenca-Bescos, Gloria (2008): A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii). Zoological Journal of the Linnean Society 154 (2): 278-290, DOI: 10.1111/j.1096-3642.2008.00410.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00410.x
3B728792FF93FFFFBB6FF996EED5FE3D.taxon	diagnosis	Diagnosis: Lamniform sharks only known by isolated teeth and characterized by the following combination of characters: tearing-type dentition with very weak gradient monognathic heterodonty; a single pair of parasymphyseals (?) present; mesiodistally compressed teeth, with generally a single pair of lateral cusplets; robust roots with short branches; lingual protuberance more or less massive; with nutritive groove, which might be secondarily closed.	en	Kriwet, Jürgen, Klug, Stefanie, Canudo, José I., Cuenca-Bescos, Gloria (2008): A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii). Zoological Journal of the Linnean Society 154 (2): 278-290, DOI: 10.1111/j.1096-3642.2008.00410.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00410.x
3B728792FF93FFFFBB6FF996EED5FE3D.taxon	synonymic_list	Genera included: Eoptolamna gen. nov., Leptostyrax, and Protolamna.	en	Kriwet, Jürgen, Klug, Stefanie, Canudo, José I., Cuenca-Bescos, Gloria (2008): A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii). Zoological Journal of the Linnean Society 154 (2): 278-290, DOI: 10.1111/j.1096-3642.2008.00410.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00410.x
3B728792FF93FFFEB900FA2DEF18FD0B.taxon	etymology	Derivation of name: From the Latin word ‘ eccentricus’, meaning ‘ eccentric’, and the Greek word ‘ lophos’, meaning ‘ crest’, in allusion to the distinctive labial crests.	en	Kriwet, Jürgen, Klug, Stefanie, Canudo, José I., Cuenca-Bescos, Gloria (2008): A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii). Zoological Journal of the Linnean Society 154 (2): 278-290, DOI: 10.1111/j.1096-3642.2008.00410.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00410.x
3B728792FF93FFFEB900FA2DEF18FD0B.taxon	materials_examined	Type specimen: Anterolateral tooth, MPZ 2005 - 4 (Fig. 2 A – D), housed in the Museo Paleontológico, Universidad de Zaragoza, Spain. Type locality and age: Vallipón, west of Castellote, c. 150 km south-east of Zaragoza; Artoles Formation, upper Barremian. Type stratum: Basal conglomeratic bed. Referred material: About 30 teeth from the Albian of Castellote, Province of Teruel (Figs 2 E – Z, 3).	en	Kriwet, Jürgen, Klug, Stefanie, Canudo, José I., Cuenca-Bescos, Gloria (2008): A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii). Zoological Journal of the Linnean Society 154 (2): 278-290, DOI: 10.1111/j.1096-3642.2008.00410.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00410.x
3B728792FF93FFFEB900FA2DEF18FD0B.taxon	diagnosis	Diagnosis: As for genus, monotypic.	en	Kriwet, Jürgen, Klug, Stefanie, Canudo, José I., Cuenca-Bescos, Gloria (2008): A new Early Cretaceous lamniform shark (Chondrichthyes, Neoselachii). Zoological Journal of the Linnean Society 154 (2): 278-290, DOI: 10.1111/j.1096-3642.2008.00410.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00410.x
