[MM] Quirogatherium major
’Eupantotherians’
DESCRIBER Bonaparte, 1990
TIME
Early Paleocene
CLASS Mammalia
CLADE Cladotheria
SUPERORDER Dryolestoidae
ORDER Dryolestida
FAMILY Mesungulatidae
FOSSILSITE Patagonia, Argentina
INFO
Mesungulatum houssayi (Bonaparte & Soria, 1985) > Quirogatherium major (Bonaparte, 1990) This is not only the first Cenozoic dryolestid but also the second South American Paleocene survivor of a Mesozoic Gondwanan radiation.