Propalaeotherium Gervais, 1849

Bronnert, Constance & Métais, Grégoire, 2023, Early Eocene hippomorph perissodactyls (Mammalia) from the Paris Basin, Geodiversitas 45 (9), pp. 277-326 : 290

Genus Propalaeotherium Gervais, 1849

Propalaeotherium Gervais, 1849: 383 .

TYPE SPECIES. — Propalaeotherium isselanum Gervais, 1849 by original designation.

INCLUDED SPECIES. — P. argentonicum Gervais, 1849 ; P. hassiacum Haupt, 1925 ; P. helveticum Savage, Russell & Louis, 1965 ; P. voigti Matthes, 1977 ; P. gaudryi Lemoine, 1878 .

DIAGNOSIS OF GENUS (modified from Remy et al. 2016). — Small to large Eocene equoids with estimated skull length from 120 to over 250 millimeters; dental formula: 3.1.4.3/3.1.4.3; brachylophodont dentition; upper molars with more or less pronounced mesostyle; upper premolars non-molariform, lacking hypocone; mesostyle on P3-4/ and entoconid on P/3-4 appearing in youngest species; lower cheek teeth without paraconid; lower molars with rounded crescentic lobes and prominent metaconid that is twinned; lingual cingula on upper molars, usually weak or absent; lower cheek teeth with more or less developed labial cingula, but with weak or absent lingual cingula; rather short postcanine diastema. Propalaeotherium differs from Eurohippus by a wider skull and narrower ascending ramus with regard to its height.