What is "pseudotribos"

Pseudotribos ("false chewing") is an extinct genus of mammal that lived in China during the Middle Jurassic some , more closely related to monotremes than to placental or marsupial mammals, though inversely other studies recover shuotheres are closer to therians than monotremes. The only known specimen was found in the Daohygou Formation in Inner Mongolia (: paleocoordinates ).