Or : 
Cope.] 264 [Dee. 17, 
Catalogue of the PytHonomorrHa found in the Cretaceous Strata of 
Kansas. 
By E. D. Cop. 
(Read before the American Philosophical Soctety, December 17th, 1871.) 
The following brief review is prepared in consequence of the acquisition 
by the author of a considerable accession of material from the chalk cf 
Western Kansas. Attention is confined to one order of Reptiles at pres- 
ent, owing to its predominant importance in the vertebrate fauna of 
that time and place, as is indicated by the great profusion of individual 
remains and specific forms. Although occurring in America wherever 
the Cretaceous formation appears, they are so far, more numerously rep- 
resented in Kansas than elsewhere. Though not rare in New Jersey, 
crocodiles and tortoises outnumber them; but in Kansas, all other orders 
are subordinate to the Pythonomorpha. As is now well known since 1868* 
the seas of the American continent were the home of this order, while 
they were comparatively rare in those of Europe. In the latter country 
we have four species only determined by palaeontologists, viz : 
Mosasaurus....... so Ore ieee ihc ias Up r cies boise aon cs 2 
dB La[e lope ORR i ie vee esnit my cute Beara ps ee coum Ai 
7 AULOSPONGYAUS: ei ek pe vets rie ee cs ce vs ht hv she ui 
p 2 
In North America the species have been exactly determined from three 
regions, as follows : 
Green Sand of New Jersey. 
TNO: C ALUM OS gris alas knits ae a ina ing rene smaramrere eh ree lias 6 
SALONS, Gey reo reyes Sunes 4c ug vie, Vi Ve 2 
ONGARUOSe 0 CPS aes et PE rr eae er eas ReaD 2 
WNOdOMN Sry rye a trees Apr pena aaa | 4 
@YDIPIOOMOdON i ver Nes erin os es di 
15 
Rotten Limestone, Alabama. 
Mosasdiiisvr re via. tee, ae BES eee errs eee ere al 
PolcOdusi iss Os el Re ee ae 1 
TRON GW hire OF Pee es a ee Seon 3 
ORES, er a ee Pe i ee 2 
A 
Chalk of Kansas. 
CUA eNO i ie cs se oy ES IN I 3 
WAGSHOSaMIIUGs er wo eee awe eee eee eS 4 
Holcodtig.......- ahs he Bers AE PTET. VINE, 4, 
THGUOH Cg as a A OY OT 5 
17 
* 
See Transactions Amer. Philo. Soc., Vol. XIV. 
(To be continued in No. 88.) 
ret 
