Originally, monotremes were classified as a subclass of mammals known as Prototheria. The names Prototheria, Metatheria and Eutheria (meaning "first beasts", "changed beasts", and "true beasts", respectively) refer to the three mammalian groupings that have living representatives. Each of the three may be defined as a total clade containing a living crown-group (respectively, the Monotremata, Marsupialia and Placentalia) plus any fossil species that are more closely related t… WebNov 9, 2004 · The most important genera for stratigraphic correlation at the moment are Shuotherium and Eleutherodon. The enigmatic genus Shuotherium was originally identified from Eastern Asia (the Upper Shaximiao Formation of Sichuan, Chow and Rich 1982 ; Wang et al. 1998 ) with the species S. dongi (Chow and Rich 1982 , based on a partial lower jaw) …
Wikizero - Shuotherium
WebABSTRACT. A three-cusped, mammalian upper molar was recovered from the type locality of Shuotherium dongi Chow and Rich, 1982 in the Late Jurassic, Upper Shaximiao Formation Sichuan, China. This tooth is too large to be referable to S. dongi, which is known only from a fragment of a left mandible with teeth.Shared, derived (possibly autapomorphic), … Web(1982) hypothesized that Shuotherium dongi had upper molars with a protocone-like cusp (pseudo-protocone) that occluded with the pseudo-talonid of the lowers, an occlusal pattern unlike that of tribosphenidans and docodonts. To recognize this dis-tinct occlusal pattern, they referred Shuotherium dongi to a new supraordinal group, Yinotheria. sharkey group
The first haramiyoid mammal from Asia SpringerLink
WebAllotheria (meaning "other beasts", from the Greek αλλός, allos –other and θήριον, therion –wild animal) is an extinct branch of successful Mesozoic mammals. The most important … WebDocodontans are a monophyletic group defined by the common ancestor of Docodon, Simpsonodon, and all other Mesozoic mammal taxa more closely related to Docodon and Simpsonodon than to morganucodontans, Shuotherium, and cladotherians (stem “eupantotherians”). This group consists of mole-sized or smaller mammals. popular boy names in the 1990s