What is "argentoconodon"

Argentoconodon (meaning " Argentina cone tooth") is an extinct genus of theriimorph mammal from the Cañadon Asfalto Formation of Patagonia. When originally described, it was known only from a single molariform tooth, which possessed a combination of primitive and derived features. The tooth is currently held in the Museo Paleontológico Egidio Feruglio, where it was given the specimen number MPEF-PV 1877. New material described in 2011, including most of a skull and many mostly complete skeletons, show that Argentoconodon was similar to Ichthyoconodon, Jugulator and Volaticotherium within the family Triconodontidae, and possibly also Triconolestes. Several postcranial similarities to Volaticotherium also suggest that it was a gliding or even flying mammal.