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THE POPULAR SCIENCE MONTHLY 



OOMPAEATIVE TABLE SHOWING KNOWN HiSTOBT OF THE MAMMALIAN FaUNAS 



IN THE Mohave Area. 



Recent 



Desert Fauna 

 Reptilia 

 Tortoise 

 Rattlesnake 



Carnivora 

 Desert coyote 



Desert kit fox 



Cougar 

 Desert wild cat 



California raccoon 

 Spotted skunk 

 Striped skunk 

 Ungulata 



Pleistocene 



Manix 



Reptilia 



Carnivora 



Ungulata 

 Equus, large 

 ( Horse ) 



Equus, small 

 (Horse) 



Prong-horn ante- 

 lope 



Desert bighorn 

 sheep 



Rodentia 

 Numerous genera 

 and species 



Camelops? (Camel, 



large) 

 Camel, small 



Antelope, large 

 (Prong-horn?) 



Preboscidea 

 Elephant or Mas- 

 todon 



Rodentia 

 Fragments only 



Pliocene 



Ricakdo 

 Reptilia 

 Tortoise, large 



Carnivora 

 Aelurodon, 3 spec- 

 ies (Heavy -jawed 

 dogs) 



Dog, small 

 Ischyrosmilus 



( Sabre-tooth cat ) 

 True cat, very large 

 True cat, medium 



size 

 Marten 



Ungulata 



Hipparion, 2 spec- 

 ies (Advanced 

 grazing-horse , 

 3-toed) 



Pliohippus, 2 or 

 3 species ( Ad- 

 vanced grazing- 

 horse, 3-toed) 



Procamelus?, (a) 

 (Camel, small) 



Procamelus?, (6) 

 (Camel, small) 



Alticamelus?(Tall 

 camel) 



Pliauchenia? 

 (Camel, very 

 large) 



Merycochoerus ?, 

 (6) (Oreodon) 



Merycodus (Deer- 

 antelope) 



Miocene 



Proboscidea 

 Tetrabelodon? 

 ( Four -tusked 

 mastodon ) 

 Rodentia 

 Fragments only 



Tortoise, 



Baestow 



Reptilia 



large 



Carnivora 

 Aelurodon, 2 species 

 (Heavy -jawed dogs) 



Tephrocyon (Possible 

 ancestor of modern 

 wolves ) 



Dog, very large 



Dog, small 



Sabre-tooth cat, large 

 True cat, very larj,e 



Ungulata 

 Hypohippus (Forest- 

 horse, 3-toed) 



Parahippus (Browsing- 

 horse, 3-toed) 



Merychippus, 3 forms, 

 abundant (Grazing- 

 horse, 3-toed) 



Protohippus, rare (Ad- 

 vanced grazing- 

 horse, 3-toed) 



Procamelus (Camel, 

 small) 



Alticamelus?, (Tall 



camel) 

 Pliauchenia? (Camel, 



large) 



Merycochoerus (a) 

 (Oreodon) 



Merycodus (Deer-ante- 

 lope) 



Merycodus? (Crowned 

 deer-antelope) 



Dromomeryx (Ante- 

 lope-deer) 



Proboscidea 

 Tetrabelodon ? Four- 

 tusked mastodon) 



Rodentia 

 Fragments only 



