55 
Recent. 
Quaternary. 
Tapir, Peccary, Bison, Llama. 
Son, Eqwts, Megatherium, Mylodon. 
Equus Beds. 
Phohippus Bods. 
Eqwis, Taptrtis, Elephaa. 
Mibhippus,Beds. 
Oreodon Beds. 
Bron lother i urn Bed s 
MUtHippUS, rncerai.hp.rlnm, Thinohyus, 
j Oreodon, Eporcodon. Huamodon. Uyracodon, 
, Jforopus. 
J Brontothertum. Brontopr,, Allops, Titntiops, Tltano- 
t thirium, Proiocerun, Jfemj/tijipun, Elotherinm, 
Diplacodon Beds. 
Dinoceras Beds. 
Heliobatis Beds. 
Corj'pliodoo Beds. 
Dlptaco'lon. EplMppus, Amynodon, 
Dlnoctraa. Tlnoceras, Ul n lather imn, Pnlirmyups, 
Qrohlppits, llyrachyun. Colonoceran. 
Heliobatis, Amia, Lepidosteus. 
Laramie Series, or 
Cera tops Beds. 
Ceratopx, TrU-tra'ap*, flattrwuurwi, Ih-yptoimurvtt. 
Wnmniuls, Cimolomys, Diprimhm, Heifnacodou, 
Na-nom y-i . SUiy t idon. Birds, Cimolopte ryx. 
Fox Hill group. 
Colorado Series, or 
PteranodoD Beds. 
Birds with Tci'th, flespfrnrnlv. Ichthyarnia. 
Mosasanrs, EdexloM urv*, Lesioaaurwi. Tyloxaurus 
Pterodactyls t Pte.ru nodon). Fli'fiioaauiH. 
Dakota Group. 
Atlantosaurus Beds ( Dinosaurs, Brontosaurun, Jforoxaurux, Diptodccus, 
Baptanodon Beds. I Stef/naaurua. Camptonotm, Ailoswrun. Mammilla, 
Hullopus Beds. [ Dryoleetes, Stylacwlun, Ttoodon, Qlenncodon. 
Otozoum, or 
Conn. River, Beds. 
First Mammals (.Dromalherium). 
Dinosaur Footprints. Anchisaurus. Ammosaurtts. 
Crocodiles (Belodon). 
Nothodon Beds. 
Reptiles {Nothodon, Sphenacodon). 
Coal Measures, or 
Eosaurua Buds. 
First Reptiles i?) Eosaurits, 
First known Fishes. 
Tio YerUihrales tnoim 
Section to illustrate Vertebrate Life in America. 
Fig. 42. 
