376 B. BROWX CRETACEOUS-EOCENE CORRELATION IN NEW MEXICO 



VERTEBRATES 



Red Deer River, American Museum CJollectlon 



SaurulopJius oshonii Brown 

 Hypacrosaurus altispitins Brown 

 Trachodon sp. 

 (Vrt opsin gen. et sp. nov. 

 gen. et sp. nov. 

 Ankylosaurus magniventris Brown 

 Ankylosauridse gen. et sp. nov. 

 sp. 



Alhertosaurus sarcophagus Osborn 

 Ornithomimus f alius Lambe 



sp. 

 Leurospondylus ulti7nu8 Brown 

 Champsosaurus sp. 

 Trionychidai 

 Croeodilia 



INVERTEBRATES 



Red Deer River, American Museum CJollectlon 



Sphwrium sp. 



Physa sp. 



Viviparus sp., related to V. raynolda- 



nus M. and H. 

 Viviparus sp„ related to V. prudentius 



White 

 Viviparus sp., probably undescribed 

 Goniohasis tenuicarinata M. and H. 

 Goniobasis ** var. 



Goniohasis sp. 

 Campeloma sp. 

 Thaumastus UmruEiformis M. and H. 



Unio sp., related to Vnio danw M. 



and H. 

 Ostrea glabra M. and H. 

 Ostrea suhtrigonalis E. and S. 

 Anomia micronema Meek 

 MytiJus sp. 



Corbicula occidentalis M. and H. 

 Corbicula cytheriformis M. and H. 

 Panopswa simulatrix Whiteaves 

 Panopwa curta Whiteaves 

 Lunatia concinna M. and H. 



PLANTS 



Red Deer River, American Museum Collection 



I'opulus cuneata Newb. 

 Populus acenfolia Newb. 

 Populus nebrasccnsis Newb. 

 Populus amblyrhyncha Ward. 

 Ginkgo laraniietisis Ward 

 Sequoia uordenskioldii Heer 

 Sequoia Inngsdorfii (Brgh.) Heer 



Glyptostrobus sp. 



Car pit es cf. C. lineatus Newb. 



Pterospermites prob. P. Whitei Ward 



Equisetum sp. nov. 



Ficus russclli Knowltou 



Cycad ? sp. 



Other species accredited to this formation by Tyrrell : 

 Trapa horealis Heer Salisburia sp. 



BELLY RIVER BEDS 



This series consists of light-gray clays and soft whitish sandstones 

 interbedded with ironstone-encrusted pebbles in the upper two-thirds of 

 the formation and soft yellowish, ma.ssive sandstones at the base. 



The beds are chiefly of fresh-water origin and appear to be a continua- 

 tion of the Judith River Beds. 



