Conoryctella dragonensis (Gazin 1939; Paleocene; holotype USNM 15704, Conoryctella pattersoni UNM B-1258) is a traditional taeniodont, but here nests with Onychodectes, sharing most of its traits. Traditionally this genus is identified by its teeth, which tend to converge in Mammalia, rather than in a cladogram which tests all available traits. Note the flat to cup-shaped molars and the long premaxilla. |