Tomarctus References Tomarctus extinct mammal genus Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: dog/ AncestryThe Eurasian branch was called Tomarctus and is the progenitor of wolves, dogs, and foxes. Read MoreThe Eurasian branch was called Tomarctus and is the progenitor of wolves, dogs, and foxes. Read More