taxonID	type	description	language	source
7C2587972C5EFFE5DD3BFB984F2DFD32.taxon	materials_examined	HOLOTYPE: AMNH FM 20161: left maxilla with P 2 – 4. REFERRED SPECIMENS: AMNH FM 81802: a left mandible with c – m 3. AMNH FM 81804: a left mandible with p 4 – m 3.	en	Bai, Bin, Wang, Yuan-Qing, Mao, Fang-Yuan, Meng, Jin (2017): New material of Eocene Helaletidae (Perissodactyla, Tapiroidea) from the Irdin Manha Formation of the Erlian Basin, Inner Mongolia, China and comments on Related Localities of the Huheboerhe Area. American Museum Novitates 2017 (3878): 1-44, DOI: 10.1206/3878.1, URL: http://www.bioone.org/doi/10.1206/3878.1
7C2587972C5EFFE5DD3BFB984F2DFD32.taxon	description	NEW MATERIAL: IVPP V 22640: an associated cranium and mandible lacking rostral portion; IVPP V 23366.1, a left maxilla with P 2 – 3 and root of P 1; and IVPP V 23366.2, an isolated right M 3. LOCALITY AND HORIZON: Duheminboerhe (Camp Margetts) (IVPP V 22640, V 23366.1), and Daoteyin Obo (IVPP V 23366.2), Erlian Basin, Inner Mongolia; Irdin Manha Formation, middle Eocene.	en	Bai, Bin, Wang, Yuan-Qing, Mao, Fang-Yuan, Meng, Jin (2017): New material of Eocene Helaletidae (Perissodactyla, Tapiroidea) from the Irdin Manha Formation of the Erlian Basin, Inner Mongolia, China and comments on Related Localities of the Huheboerhe Area. American Museum Novitates 2017 (3878): 1-44, DOI: 10.1206/3878.1, URL: http://www.bioone.org/doi/10.1206/3878.1
7C2587972C5EFFE5DD3BFB984F2DFD32.taxon	diagnosis	DIAGNOSIS: Preorbital portion relatively shorter compared with postorbital part. The lateral trough on ascending process of the maxilla extending posteriorly above the supraorbital process of the frontal. A pair of medial troughs on the dorsal surface of the frontal separated by a median anterior sagittal crest and extending posteriorly to the frontal line. P 3 – 4 metaloph extending toward protocone, bypassing the hypocone. Posterior end of mandibular symphysis ending at the level of p 2. p 2 – m 3 relatively long and narrow. p 3 – 4 entoconid small and distinct, talonid slightly wider than trigonid. m 3 hypoconulid highly reduced. DIFFERENTIAL DIAGNOSIS: Differs from Desmatotherium mongoliense in having an infraorbital foramen opening above the posterior border of P 3, a symphysis of the mandible terminating at the level of p 2, P 2 – 4 more molariform, metaloph more prominent and extending toward the protocone, paracone and metacone more convex buccally, M 1 – 2 metacone slightly shorter, M 2 paracone vertically situated and more trapezoid in outline, M 3 metacone less lingually depressed, p 2 – 4 entoconid smaller, p 4 talonid nearly as wide as trigonid, m 3 hypoconulid highly reduced. Differs from Paracolodon inceptus in being smaller, and in having P 3 – 4 more molariform, P 2 – 4 paracone and metacone more closely situated, M 1 – 2 metacone relatively longer, distobuccal cingulum lower, and M 3 metacone less lingually depressed.	en	Bai, Bin, Wang, Yuan-Qing, Mao, Fang-Yuan, Meng, Jin (2017): New material of Eocene Helaletidae (Perissodactyla, Tapiroidea) from the Irdin Manha Formation of the Erlian Basin, Inner Mongolia, China and comments on Related Localities of the Huheboerhe Area. American Museum Novitates 2017 (3878): 1-44, DOI: 10.1206/3878.1, URL: http://www.bioone.org/doi/10.1206/3878.1
7C2587972C4BFFF2DDC0FDFE49C3F940.taxon	materials_examined	HOLOTYPE: AMNH FM 19161: Right maxilla with P 2 – M 3. REFERRED SPECIMENS: AMNH FM 20155: right mandible with p 3 – m 3; AMNH FM 20156: left maxilla with P 3 – 4, right maxilla with M 2; AMNH FM 81717: right mandible with p 3 – m 1; AMNH FM 81718: right mandible with p 3 – 4; AMNH FM 81792: right mandible with dp 4 – m 1; AMNH FM 81803: right mandible with p 2 – m 2; PSS. 41 – 3: right M 1 / 2.	en	Bai, Bin, Wang, Yuan-Qing, Mao, Fang-Yuan, Meng, Jin (2017): New material of Eocene Helaletidae (Perissodactyla, Tapiroidea) from the Irdin Manha Formation of the Erlian Basin, Inner Mongolia, China and comments on Related Localities of the Huheboerhe Area. American Museum Novitates 2017 (3878): 1-44, DOI: 10.1206/3878.1, URL: http://www.bioone.org/doi/10.1206/3878.1
7C2587972C4BFFF2DDC0FDFE49C3F940.taxon	description	NEW MATERIAL: IVPP V 14692: left maxilla with DP 1, P 2 – M 2; IVPP V 23367, associated upper cheek teeth with right P 2 – 3, left P 2 – 3, M 1 / 2, and M 3; IVPP V 23368, a right mandible with p 2 – 4; IVPP V 23369.1, a right P 3; IVPP V 23369.2, a left P 4; IVPP V 23369.3, a right M 3; IVPP V 23369.4, a right m 3 talonid; IVPP V 23369.5 – 6, two left m 3. LOCALITY AND HORIZON: Irdin Manha escarpment (IVPP V 23368, V 23369.1 – 2, 4), Duheminboerhe (IVPP V 23367), Huheboerhe (IVPP V 23369.3, 5), and Chaganboerhe (IVPP V 14692, V 23369.6), Erlian Basin, Inner Mongolia; Irdin Manha Formation, middle Eocene. Mergen, eastern Gobi, Mongolia; Mergen Formation, middle Eocene.	en	Bai, Bin, Wang, Yuan-Qing, Mao, Fang-Yuan, Meng, Jin (2017): New material of Eocene Helaletidae (Perissodactyla, Tapiroidea) from the Irdin Manha Formation of the Erlian Basin, Inner Mongolia, China and comments on Related Localities of the Huheboerhe Area. American Museum Novitates 2017 (3878): 1-44, DOI: 10.1206/3878.1, URL: http://www.bioone.org/doi/10.1206/3878.1
7C2587972C4BFFF2DDC0FDFE49C3F940.taxon	diagnosis	DIAGNOSIS: The ascending process of maxilla with a wide and shallow lateral trough. Infraorbital foramen opening above the posterior end of P 4 indicating a short infraorbital canal. Symphysis terminating anterior to p 2. P 2 – 4 relatively long and narrow, protocone distally extended with the hypocone rudimentary separated. P 2 – 3 metaloph greatly reduced compared with protoloph. M 1 – 2 metacone concave, short, lingually depressed. The apex of M 2 paracone distally curved. M 3 metacone highly reduced. p 2 – 4 entoconid large, p 4 talonid wider than trigonid. m 3 with a rather small hypoconulid. DIFFERENTIAL DIAGNOSIS: Differs from Desmatotherium intermedius in having P 2 hypocone and protocone slightly more separated, P 3 – 4 metaloph extending toward hypocone instead of protocone, M 1 – 3 metacone more lingually depressed, M 2 – 3 centrocrista more aligned with metaloph, M 3 more trapezoid in outline, p 3 – 4 talonid not considerably wider than trigonid, and m 3 hypoconulid more distinct.	en	Bai, Bin, Wang, Yuan-Qing, Mao, Fang-Yuan, Meng, Jin (2017): New material of Eocene Helaletidae (Perissodactyla, Tapiroidea) from the Irdin Manha Formation of the Erlian Basin, Inner Mongolia, China and comments on Related Localities of the Huheboerhe Area. American Museum Novitates 2017 (3878): 1-44, DOI: 10.1206/3878.1, URL: http://www.bioone.org/doi/10.1206/3878.1
