Plioceros floblairi Genus †Sphenophalos Sphenophalos garciae Sphenophalos middleswarti Sphenophalos nevadanus Tribe †Proantilocaprini Genus †Proantilocapra Proantilocapra platycornea Genus †Osbornoceros Osbornoceros osborni Tribe Stockoceratini Genus †Capromeryx - (junior synonym Breameryx) Capromeryx arizonensis - (junior synonym B. arizonensis) Capromeryx furcifer - (junior synonyms B. minimus, C. minimus)Capromeryx gidleyi - (junior synonym B. gidleyi)Capromeryx mexicana - (junior synonym B. mexicana)Capromeryx minor - (junior synonym B. minor)Capromeryx tauntonensisGenus †CeratomeryxCeratomeryx prenticeiGenus †HayocerosHayoceros barbouriHayoceros falkenbachiGenus †HexameryxHexameryx simpsoniGenus †HexobelomeryxHexobelomeryx frickiHexobelomeryx simpsoniGenus †StockocerosStockoceros conklingi (junior synonym S. onusrosagris) Genus †TetrameryxTetrameryx irvingtonensisTetrameryx knoxensisTetrameryx mooseriTetrameryx shuleriTetrameryx tacubayensisSubfamily †Merycodontinae Genus †CosoryxCosoryx cerroensisCosoryx furcatusCosoryx ilfonensisGenus †MerriamocerosMerriamoceros coronatusGenus †Merycodus (syn. Meryceros and Submeryceros)Merycodus crucensisMerycodus hookwayiMerycodus jorakiMerycodus majorMerycodus minimusMerycodus minorMerycodus necatusMerycodus nenzelensisMerycodus prodromusMerycodus sabulonisMerycodus warreniGenus †ParacosoryxParacosoryx alticornisParacosoryx burgensisParacosoryx dawesensisParacosoryx furlongiParacosoryx loxocerosParacosoryx nevadensisParacosoryx wilsoniGenus †RamocerosRamoceros brevicornisRamoceros marthaeRamoceros merriamiRamoceros osborniRamoceros palmatusRamoceros ramosus'' References Mammal families Extant Miocene first appearances Taxa named by John Edward Gray