PLATE Clie 
SKULL AND Jaws oF Miocene CAMELS 
Nomenclature 
Cope 1880-3 Revised 1915 
Procamelus angustidens Cope 1872 = Protolabis angustidens Cope 
“Procamelus angustidens” Cope 1881 = Procamelus inzequidens sp. nov. 
Fic. 1. Procamelus inequidens sp.nov. Side view of skull and jaws, No. 8446, type, from Upper 
Miocene, Republican R. beds, Driftwood Creek, Hitchcock Co., Nebraska. 
This skull was referred by Cope to P. angustidens, but differs from topotypes of 
that species in the absence of the upper incisors and other characters of less 
moment. 
Fias. 2, 3. Inferior and superior views of same skull. 
Fia. 4. Protolabis angustidens Cope, 1872. Lower jaws, type specimen, superior view. From 
Middle Miocene (Pawnee Creek beds) near Pawnee Buttes, Colorado. Cope 
Coll., Am. Mus. No. 8294. 

