GEOGRAPHIC DISTRIBUTION 



11 



Merycoides — Montana 



M. cursor — Lewis & Clark, Mont. 

 M. latldens- — Lewis & Clark, Mont. 

 M. longiceps — Jefferson, Mont. 



Merycoidodon — Saskatchewan, Colorado, 

 Montana, Nebraska, ? Oregon, North 

 and South Dakota, ? Texas, Wyoming 



M. affinis — Logan, Colo. ; Scotts Bluff, 

 Sioux, Neb. ; Shannon, So. Dak. ; Niobrara, 

 Wyo. 



M. culbertsonii- — Saskatchewan; Weld, 

 Colo.; Broadwater, Mont.; Banner, Dawes, 

 Scotts Bluff, Sioux, Neb.; ? Grant, Ore.; 

 Pennington, Washington, So. Dak.; ? Cor- 

 yell, Texas; Goshen, Niobrara, Wyo. 



M. cpericulorum — Logan, Colo.; Sioux, 

 Neb. ; Goshen, Niobrara, Wyo. 



M. gracilis — Northeast Colo. ; Sioux, Neb. ; 

 Washington, So. Dak.; ? Coryell, Texas; 

 Goshen, Niobrara, Wyo. 



M. macrorhinus — Broadwater, Mont. 



M. platycephalus — Scotts Bluff, Neb. 



M. sp. — Saskatchewan; Stark, No. Dak.; 

 ? Grant, Ore. 



Mesoreodon — Montana, Nebraska, South 



Dakota, Wyoming 

 M.chelonyx — Meagher, Mont.; Goshen, 



Wyo. 

 M. intermedins — Meagher, Mont. 

 M. megalodon — -Sioux, Neb. ; Shannon, So. 



Dak.; Goshen, Niobrara, Wyo. 

 M. scotti- — Niobrara, Wyo. 

 M. sp. — Sioux, Neb. ; Washington, So. Dak. 



Metoreodon — California, Colorado, Montana, 



Nebraska, New Mexico, South Dakota 

 M. calif ornicus — Kern, Calif. 

 M. compressidens — Gallatin, Mont. 

 M. major — Northeast Colo. ; Brown, Sioux, 



Neb. 

 M.medius — Northeast Colo.; Sioux, Neb.; 



Santa Fe, New Mex. 

 M. novomexicanus — Santa Fe, New Mex. 

 M. profectus — Brown, Cherry, Sioux, Neb. ; 



Malheur, Ore.; Bennett, So. Dak. 

 M. relictus — Sioux, Neb. 

 M. sp. — Malheur, Ore. 



Oreodontoides — Oregon 



O. oregonensis — Grant, Wheeler, Ore. 



Oreonetes — Montana 



O. anceps — Beaverhead, Gallatin, Mont. 



Paroreodon — Oregon 

 P. marshi — Grant, Ore. 



Phenacoccelus — Nebraska 

 P. munro'e'nsis — Sioux, Neb. 

 P. typus — Sioux, Neb. 



Poatrephes — Montana 



P. paludicola — Granite, Meagher, Mont. 



Promerycochcerus — California, Colorado, 

 Montana, Nebraska, Oregon, South 

 Dakota, Wyoming 



P. carrikeri — Sioux, Neb. 



P. chelydra — Wheeler, Ore. 



P. c. latidens — Grant, Ore. 



P. curvidens — Grant, Ore. 



P. erythroceps — Kern, Calif. 



P. gregoryi — Washington, So. Dak. 



P. g. loomisi — Goshen, Wyo. 



P. hesperus — Ventura, Calif. 



P. hollandi — Lewis & Clark, Mont. 



P. h. hatcheri — Lewis & Clark, Mont. 



P. h. minor — Granite, Mont. 



P. leidyi — Grant, Wheeler, Ore. 



P. lulli — Grant, Ore. 



P. macrostegus — Wheeler, Ore. 



P. m. inflatus — Wheeler, Ore. 



P. marshi — Grant, Ore. 



P. microcephalus — Grant, Ore. 



P. montanus — Meagher, Mont. 



P. m. grandis — Lewis & Clark, Mont. 



P. superbus — Wheeler, Ore. 



P. thomsoni — Shannon, Washabaugh, Wash- 

 ington, So. Dak. 



P. vantasselensis — Sioux, Neb. ; Niobrara, 

 Wyo. 



P. v. pygma'us — Washington, So. Dak. 



P. sp. — Northeast Colo.; Jefferson, Mont.; 

 Grant, Ore.; Jones, So. Dak. 



Pronomotherium — Montana, Nebraska, 

 Oregon 

 P. altiramus — Gallatin, Mont. 

 P. elrodi — Gallatin, Mont. 

 P. laticeps — Granite, Mont. 

 P. madisonium — Gallatin, Mont. 

 P. siouense — Sioux, Neb. 

 P. sp. — Malheur, Ore. 



