Metatomarctus

Metatomarctus is an extinct genus of the Borophaginae subfamily of canids native to North America. It lived during the Early to Middle Miocene, 23–16 Mya, existing for approximately 7 million years^[1] It was an intermediate-size canid, and more predaceous than earlier borophagines.^[2]

Metatomarctus Temporal range: Early Miocene–Middle Miocene PreꞒ Ꞓ O S D C P T J K Pg N
Fossil skull cast, Florida Museum of Natural History
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Carnivora
Family:	Canidae
Subfamily:	†Borophaginae
Tribe:	†Borophagini
Genus:	†Metatomarctus Wang et al., 1999
Species:	†M. canavus
Binomial name
†Metatomarctus canavus (Simpson, 1932)

It hunted in packs,^{[citation needed]} like modern canines, and may have preyed upon creatures such as Equus, rodents, and other smaller prey.^{[citation needed]}

Fossil distribution

• Thomas Farm Site, Gilchrist County, Florida, estimated age ~23.3—16.3 Mya.^[3]
• Pollack Farm Site, Kent County, Delaware.
• Hackberry Wash, San Bernardino County, California.
• Rattlesnake Hills, Fremont County, Wyoming.
• High Rock Canyon aka UCMP V-110, Humboldt County, Nevada.
• Ahren's Prospect, Elder Ridge, and Pebble Creek, Runningwater Formation, Dawes County, Nebraska.^[4]
• Other fossil locations: Maryland, Wyoming, New Mexico, western Nebraska.^[1]