Differences between anterior and posterior Ph I

The differences are particularly clear on the illustrated pair of phalanges (BO 89482, HP 35) and on most first phalanges of E. hemionus.

 In the same animal, first anterior phalanges are almost always longer.

 On the posterior Ph I, the distal supra-articular tuberosities are closer to the proximal extremity.

 On the anterior Ph I, the trigonum phalangis reaches farther down (posterior view).

For more details, see:

EISENMANN V. & C. DE GIULI, 1974. - Caractères distinctifs des premières phalanges antérieures et postérieures chez certains Equidés actuels et fossiles. Bull. Soc. géol. Fr., (7), XVI, (4 ): 352-361, 8 fig., 4 tabl.

DIVE J. & V. EISENMANN, 1991.- Identification and discrimination of first phalanges from Pleistocene and modern Equus, wild and domestic. In : R.H. MEADOW & H.P. UERPMANN, Equids in the Ancient World. Beihefte zum Tà¼binger Atlas des Vorderen Orients, Wiesbaden : 278-333, 16 fig., 5 tabl.