Wikipedia

Cormocyon

Cormocyon is an extinct genus of the Borophaginae and a terrestrial canine which inhabited most of North America during the Geringian stage of the Paleogene through Harrisonian stage of the Oligocene epoch living 30.8—20.6 Mya, existing for about 10.2 million years.[1]

Cormocyon contains two species: Cormocyon copei and Cormocyon haydeni. It was first named by Xiaoming Wang and Richard L. Tedford in 1992, who described it as a primitive borophagini genus after comparing it to Nothocyon geismarianus. The period of extinction overlaps the Late Oligocene and Early Miocene supepochs according to fossil record.

Morphology[edit]

Fossil specimens of two individuals' body mass were examined by Legendre and Roth. The first specimen was estimated to weigh 2.79 kg (6.1 lbs). The second specimen was estimated to weigh 2.82 kg (6.2 lbs).[2] It was related to the domestic dog.

Sister genera[edit]

Desmocyon, Euoplocyon, Metatomarctus, Microtomarctus, Protomarctus, Psalidocyon, and Tephrocyon.

Sources[edit]

  1. ^ PaleoBiology Database: Cormocyon Taxonomy, Species
  2. ^ S. Legendre and C. Roth. 1988. Correlation of carnassial tooth size and body weight in recent carnivores (Mammalia). Historical Biology


Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

Unreviewed

Article rating from 0 people

Default rating: 2.5 of 5

Desmocyon

Desmocyon is an extinct genus of the Borophaginae and a terrestrial canine which inhabited most of North America during the Harrisonian stage of the Late Oligocene through Early Hemingfordian stage of the Early Miocene epoch living 24.8—16.3 Mya existing for approximately 8.5 mya.[1]

Fossil record[edit]

It is a rarely found genus, with fossil deposits only occurring in western Nebraska, Wyoming, New Mexico and north Florida. Desmocyon contains two species: Desmocyon matthewi and Desmocyon thomsoni. It was first named by Wang in 1999.

Morphology[edit]

Fossil specimens of two individuals' body mass were examined by Legendre and Roth. The first specimen was estimated to weigh 5.67 kg (13 lb). The second specimen was estimated to weigh 5.52 kg (12 lb).[2]

Sister genera[edit]

Cormocyon, Euoplocyon, Metatomarctus, Microtomarctus, Protomarctus, Psalidocyon, and Tephrocyon

References[edit]

  1. ^ PaleoBiology Database: Cormocyon Taxonomy, Species
  2. ^ S. Legendre and C. Roth. 1988. Correlation of carnassial tooth size and body weight in recent carnivores (Mammalia). Historical Biology

General references[edit]

  • Xiaoming Wang, Richard H. Tedford, Mauricio Antón, Dogs: Their Fossil Relatives and Evolutionary History, New York : Columbia University Press, 2008; ISBN 978-0-231-13528-3


Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

Unreviewed

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!