Cynarctoides

{{Short description|Extinct genus of carnivores}}

{{Automatic taxobox

| fossil_range = {{Fossil range|Oligocene|Middle Miocene}}

| image = Cynarctoides.jpeg

| image_caption = Cynarctoides lemur fossil, University of California Museum of Paleontology.

| display_parents = 2

| taxon = Cynarctoides

| authority = McGrew, 1938

| type_species =

| subdivision_ranks = Species

| subdivision_ref = {{cite journal|last=Wang |first=Xiaoming |author2=Richard Tedford |author3=Beryl Taylor |title=Phylogenetic systematics of the Borophaginae |journal=Bulletin of the American Museum of Natural History |volume=243 |date=1999-11-17 |url=http://www.nhm.org/expeditions/rrc/wang/documents/Wangetal1999borophaginemonographpart1.pdf |accessdate=2007-07-08 |url-status=dead |archiveurl=https://web.archive.org/web/20070320023028/http://www.nhm.org/expeditions/rrc/wang/documents/Wangetal1999borophaginemonographpart1.pdf |archivedate=2007-03-20 }}

| subdivision = See text

| range_map = Phlaocyonini range.png

| range_map_caption = Range of Cynarctoides based on fossil record

}}

Cynarctoides is an extinct genus of the Borophaginae subfamily of canids native to North America. It lived from the Early Oligocene to the Middle Miocene, 33.3—13.6 Mya, existing for approximately {{Mya|33.3-13.6|million years}}. Seven species are currently recognised, all of which are estimated to have weighed no more than {{convert|1|kg}}. They had an unusual dentition that implies an omnivorous, or possibly even herbivorous, diet.{{cite book |last1= Wang |first1= Xiaoming | last2= Tedford | first2= Richard H. | date= 2008 |title= Dogs, Their Fossil Relatives and Evolutionary History |publisher= Columbia |page= 38 |isbn= 978-0-231-13528-3}}

Species

  • Cynarctoides acridens Barbour & Cook 1914 (syn. Cynarctus mustelinus) - Wyoming, California, New Mexico, Texas, ~20.6—16.3 Ma
  • Cynarctoides emryi Wang et al. 1999 - Nebraska ~20.6—16.3 Ma
  • Cynarctoides gawnae Wang et al. 1999 - New Mexico ~20.3—5.3 Ma
  • Cynarctoides harlowi Loomis 1932 - Wyoming ~24.8—20.6 Ma
  • Cynarctoides lemur Cope 1879 - Oregon, South Dakota, Florida ~24.8—20.6 Ma
  • Cynarctoides luskensis Wang et al. 1999 - Wyoming ~24.8—20.6 M
  • Cynarctoides roii Macdonald 1963 - South Dakota, Nebraska ~30.8—26.3 Ma

Fossil evidence suggests that C. lemur migrated to the east and southeast over time becoming extinct in the northwest followed by the upper Great Plains and then the southeast.{{cn|date=April 2019}}

References

{{Reflist}}

  • Martin, L.D. 1989. Fossil history of the terrestrial carnivora. Pages 536 - 568 in J.L. Gittleman, editor. Carnivore Behavior, Ecology, and Evolution, Vol. 1. Comstock Publishing Associates: Ithaca.
  • Tedford, R.H. 1978. History of dogs and cats: A view from the fossil record. Pages 1 – 10 in Nutrition and Management of Dogs and Cats. Ralston Purina Co.: St. Louis.
  • [https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=41205 Fossilworks - Cynarctoides]

{{Canidae extinct nav}}

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Category:Borophagines

Category:Oligocene canids

Category:Miocene canids

Category:Prehistoric mammals of North America

Category:Prehistoric carnivoran genera

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