Hutchemysとは 意味・読み方・使い方

Hutchemys (Hutchison's turtle) is an extinct genus softshell turtles from the late Cretaceous (Maastrichtian stage) to the late Paleocene of New Mexico, Montana, Wyoming and Utah, USA. It was first named by Walter G. Joyce, Ariel Revan, Tyler R. Lyson and Igor G. Danilov in 2009 and the type species is Hutchemys rememdium. H. rememdium is known from the holotype YPM PU 16795, consists of a nearly complete postcranial skeleton and from the referred specimen YPM PU 16781, found from the Ekalaka Member of the Fort Union Formation, Montana. Another referred specimen, YPM PU 14985, found from the Cedar Point Quarry, Wyoming. The second species, H. arctochelys, is known from the holotype YPM PU 16319, a nearly complete carapace and from the paratypes YPM PU 16320, YPM PU 16321, YPM PU 16322, YPM PU 16238. All specimens of H. arctochelys were recovered from the same quarry of the Tongue River Member, Fort Union Formation, near Burns Mine of Montana. A possible third species is represented by the unnamed specimen UCMP 130000 from the Paleocene Tullock Formation of Montana. Aspideretes? nassau (YPM PU 11566) from the Fort Union Formation, Duffy’s Ranch of Sweet Grass County, Montana was also assigned to Hutchemys sp.