FOSSIL HORSE REMAINS FROM IDAHO — GAZIN 285 



FOSSIL VERTEBRATES FOUND AT HAGERMAN, IDAHO 



Mammalia: 



Edentata: 



Megalonyx leptonyx? (Marsh). 

 Insectivora: 



Blarina gidleyi Gazin. 

 Carnivora: 



Canid sp. 



Hyaenognathns or Borophagus sp. 



Lidraviis? idahoejisis Gazin. 



Luiravusl cookii Gazin. 



Luira (Satherium) piscinaria Leidy. 



Felis lacusiris Gazin. 



Machairodust hesperus Gazin. 

 Proboscidea: 



Mastodont sp. 

 Perissodactyla: 



Plesippus shoshonensis Gidley. 

 Artiodactyla: 



Platygomis, n. sp. 



Camelid, possibly Camelops arena- 

 rum Hay. 



Camelid, possibly Procamelus or 

 Tanupolama. 



Cervid sp. 



Ceratomeryx prenticei Gazin. 

 Lagomorpha: 



Hypolagus near veins (L. Kellogg). 



Hypolagxis limnetus Gazin. 



Alilepusl vagus Gazin. 

 Rodentia: 



Citellid sp. 



Marmot sp. 



Thomomys gidleyi Wilson. 



Castor accessor! Hay. 



Ondatra idahoensis minor Wilson. 



Mimomys primus (Wilson). 



Perhaps the most noticeable feature of the foregoing list is the 

 number of aquatic types represented. This character of the fauna is 

 even more evident in the frequency in which bones of these tj^pes are 

 encountered compared to those representing forms having a less 

 aquatic habit. The fish and frog remains are of common occurrence. 

 The birds, though rare, are all of aquatic habit, according to Dr. 

 Wetmore. Except horse, which is abundantly represented only at the 

 quarry, and possibly peccary, by far the most numerous mammalian 

 remains are of water-loving types, as beaver, muskrat, otter, and otter- 

 like mustelids. Such an assemblage suggests a well-watered area with 

 lakes or streams and possibly swampy sections. Carbonaceous zones 

 are not uncommon in the sedimentary series as exposed, but consider- 



PiscEs: 



Various forms, principally cyprinid. 

 Amphibia: 



Remains of frogs. 

 Reptilia: 

 Testudinata: 



Pseudemys idahoensis Gilmore. 

 Serpentes: 



Thamnophis sp. 

 AvES: 



Colymbiformes: 



Colymbus sp. 



Colymbid sp. 

 Pelecaniformes: 



Pelecanus halieus Wetmore. 



Phalacrocorax idahensis (Marsh). 



Phalacrocorax auritus (Lesson). 



Phalacrocorax sp. 

 Anseriformes: 



Cygnus sp. a. 



Cygnus sp. b. 



Chen pressa Wetmore. 



Querquedula sp. 



Anatid sp. 

 Gruiformes: 



Gruid sp. 



Gallinula chloropus (Linnaeus). 



Rallid sp. 



