Metatomarctus

Extinct genus of carnivores

Metatomarctus Temporal range: Early Miocene–Middle Miocene PreꞒ Ꞓ O S D C P T J K Pg N
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)

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]

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]

Extinct members of the family Canidae

Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Suborder: Caniformia

incertae sedis

†Prohesperocyon

†Hesperocyoninae

†Borophaginae

Phlaocyonini

Cynarctoides
Phlaocyon

Borophagini

Cormocyon Desmocyon Metatomarctus Euoplocyon Psalidocyon Microtomarctus Protomarctus Tephrocyon
Cynarctina	Paracynarctus Cynarctus
Aelurodontina	Tomarctus Aelurodon
Borophagina	Paratomarctus Carpocyon Protepicyon Epicyon Borophagus

Caninae

†Leptocyon
†Metalopex
†Nurocyon
†Prototocyon

Urocyon

†U. citrinus
†U. galushai
†U. minicephalus
†U. progressus
†U. webbi

Vulpes

Canini

Cerdocyonina

†Dusicyon †Protocyon †Theriodictis
Lycalopex	†L. cultridens †L. ensenadensis
Speothos	†S. pacivorus

Canina

†Cynotherium
†Eucyon
†Aenocyon
†Xenocyon

Cuon

†C. alpinus europaeus

Canis

†C. apolloniensis †C. armbrusteri †C. arnensis †C. cedazoensis †C. edwardii †C. etruscus †C. ferox †C. lepophagus
C. latrans	†C. l. orcutti
C. lupus	†C. l. alces †C. l. beothucus †C. l. bernardi †C. l. cristaldii †C. l. floridanus †C. l. fuscus †C. l. gregoryi †C. l. griseoalbus †C. l. hattai †C. l. hodophilax †C. l. mogollonensis †C. l. monstrabilis †C. l. nubilus †C. l. youngi

Category

References

^ ^a ^b Matatomarctus, fossilworks
^ Wang, Xiaoming; Tedford, Richard H. (2008). Dogs, Their Fossil Relatives and Evolutionary History. Columbia. p. 35. ISBN 978-0-231-13528-3.
^ www.flmnh.ufl.edu Archived 2008-05-15 at the Wayback Machine
^ Dawes County Collection, Paleobiology