SYNOPSIS OF THE VERTEBRATE FAUNA OF THE PUKRCO SERIES. 



301 



between the lower and upper beds of the formation. I give a list of species which 

 have been found in the lower part of the formation only, and leave for future research 

 to determine whether they occur in the upper part of the formation or not : 



Maksupialia. 



Creodonta. 



CONDYLAUTUUA. 



Jfeoplagiaulax amerkanita . 

 Polymastodon taoensis. 



" attemifitus. 



" latimolis. 



nemiganus otariiden». 

 Onychodectes tisonensis. 

 Miodtenus pentacus. 



" bathygnaOtus. 

 crnssiaisptK. 



" coryphieus. 



" gaudrianvs. 



" jUholianu». 



" turgiduneulus. 

 Chriacus prisevs. 



" hyattianus. 



" ruetimeieranus 

 Trmodon bicuhninatus. 

 Periplychus brabensis. 

 ' ' coarctatus. 



Eetoconus ditrigonus. 



All but one of the species of MiocUenus belong to the section Sareothraustes, 

 which has five cusps on the inferior true molars. 



IJKI'TIIJA. 



Croeodilus sp. 

 Croeodilits sp. 

 Crocodilui sp. 



Plfiitomenus f communis Cope. 

 Chelydra cra»»a Cope, sp. nov. infra. 

 Compsemys sp. 

 Emys sp. 

 Trionyx sp. 



CROCODILIA. 



TESTUDINATA. 



RIIYNCIIOCEPnATJA. 



Cfiampsoiaurut auntralis Cope ; Anier. Nnlumlist, 1881. p. 090 ; Teitiiiry Vcrlobmta, p. 107, PI. -Will 1), figs. 1-4. 

 CliampfOMttriin piierceMi* Cope; Proc. Amor. Phil. Soc, 1881, p. 19."> ; Tcrliftry Vertcbniln. p. 107, PI. XXIII b, 



figs. .")-10. 

 Champtomurui mponcn»i» Cope ; loc. cit., 1*91, p. 190, p. 109, PI. XXIII b, ngs. 11-22. 



