“Carpocyon”的意思、由来-开放百科全书

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Carpocyon

释义

Taxonomy
Morphology
Species
Sister genera
Sources
References

{{Automatic taxobox
| fossil_range = {{Fossil range|Middle Miocene|Late Miocene}}
| display_parents = 4
| taxon = Carpocyon
| authority = Webb, 1969
| type_species = Carpocyon webbi
| type_species_authority = Webb, 1969
| range_map = Carpocyon range.png
| range_map_caption = Range of Carpocyon based on fossil distribution
}}

Carpocyon is an extinct member of the Borophaginae, and a terrestrial canid (dog) which inhabited most of North America during the Barstovian stage of the Middle Miocene through the Hemphillian stage of the Late Miocene epoch 13.6 to 5.3 Ma Mya.^[1] Carpocyon existed for approximately {{Mya|20.4-3.9|million years}}.

Taxonomy

Carpocyon was named by Webb in 1969 and assigned to Canidae by Webb that same year. In 1988, Carroll assigned it to Canidae with X. Wang assigning it to Borophaginae in 1999.

Morphology

Two fossil specimens of Carpocyon were measured by Legendre and Roth in 1988. They estimated that specimen one weighed {{Convert|24.1|kg|lb|abbr=on|sigfig=2}} and the second weighed {{Convert|21.8|kg|lb|abbr=on|sigfig=2}}.^[2] Its physical size was between a jackal and a small wolf.

Species

Carpocyon compressus (synonymous with Cynodesmus cuspidatus) lived 23.13—13.6 Ma, existing for {{Mya|23.13.6|million years}}. Weight of two specimens were estimated at {{Convert|19.3|kg|lb|abbr=on|sigfig=2}} and {{Convert|17.6|kg|lb|abbr=on|sigfig=2}}
Carpocyon limosus lived from 16.3—10.3 Ma, existing for {{Mya|23.3-5.33|million years}}.
Carpocyon robustus lived 13.6—10.3 Ma, existing for {{Mya|23.3-10.3|million years}}. Weight of two specimens were {{Convert|27|kg|lb|abbr=on|sigfig=2}} and {{Convert|24.3|kg|lb|abbr=on|sigfig=2}}.
Carpocyon webbi lived from 16.3—10.3 Ma, existing for {{Mya|16.3-10.3|million years}}. Weight of two specimens were estimated at {{Convert|30.4|kg|lb|abbr=on|sigfig=2}} and {{Convert|27.2|kg|lb|abbr=on|sigfig=2}}

Sister genera

Borophagus, Epicyon, Paratomarctus and Protepicyon.

Sources

[https://web.archive.org/web/20120229132309/http://zipcodezoo.com/Key/Carpocyon_Genus.asp zipcodezoo.com]
paleodb.org
The Biology and Conservation of Wild Canids By David W. Macdonald, and Claudio Sillero-Zubiri {{ISBN|0-19-851555-3}}
Flynn, J.J., 1998. Early Cenozoic Carnivora ("Miacoidea"). pp. 110–123 in C.M. Janis, K.M. Scott, and L.L. Jacobs (eds.) Evolution of Tertiary Mammals of North America. Volume 1: Terrestrial Carnivores, Ungulates, and Ungulatelike Mammals. Cambridge University Press, Cambridge. {{ISBN|0-521-35519-2}}

References

1. ^PaleoBiology Database: Carpocyon Taxonomy, Species
2. ^S. Legendre and C. Roth. 1988. Correlation of carnassial tooth size and body weight in recent carnivores (Mammalia). Historical Biology: p. 85-98

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}}

4 : Borophagines|Miocene canids|Miocene mammals of North America|Prehistoric mammal genera

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