View/Open - American Museum of Natural History
View/Open - American Museum of Natural History
View/Open - American Museum of Natural History
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8 Buletin <strong>American</strong> <strong>Museum</strong> <strong>of</strong> <strong>Natural</strong> <strong>History</strong><br />
[Vol. LI<br />
Limnenetes<br />
platyceps<br />
Eporeodon<br />
dickinsonensis<br />
Mesoreodon<br />
megIlodon<br />
Promerycocho6erus<br />
qrandis<br />
Merycocho6erus<br />
maqnus<br />
Pronomotherium<br />
altiramum<br />
I.<br />
Pm.4 Pm.3<br />
Lower<br />
-4'<br />
Pm.4 Pm.3<br />
Upper<br />
Fig. 5. The third and fourth premolars <strong>of</strong> oreodonts, uppers from the left side,<br />
lowers from the right side, to show the development <strong>of</strong> the Merycocheerus line.