Urocyon cinereoargenteus Urocyon littoralis Grey Fox (thumbnail); public domain image from U.S. Fish & Wildlife Service (http://images. ... Binomial name Urocyon cinereoargenteus (Schreber, 1775) The Gray Fox (Urocyon cinereoargenteus) is a species of fox ranging from southern Canada, throughout most of the lower United States and Central America, to Venezuela. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Placozoa (trichoplax) Orthonectida (orthonectids) Rhombozoa (dicyemids) Subregnum Parazoa Porifera (sponges) Subregnum Eumetazoa Radiata (unranked) (radial symmetry) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Bilateria (unranked) (bilateral symmetry) Acoelomorpha (basal) Myxozoa (slime animals) Superphylum Deuterostomia (blastopore becomes anus) Chordata (vertebrates, etc. ... {{{subdivision_ranks}}} See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ... Orders Multituberculata (extinct) Palaeoryctoides (extinct) Triconodonta (extinct) Subclass Australosphenida Ausktribosphenida Monotremata Subclass Eutheria (excludes extinct ancestors) Afrosoricida Anagaloidea (extinct) Arctostylopida (extinct) Artiodactyla Carnivora Cetacea Chiroptera Cimolesta (extinct) Cingulata Creodonta (extinct) Condylarthra (extinct) Dermoptera Desmostylia (extinct) Dinocerata (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Leptictida (extinct) Litopterna (extinct) Macroscelidea Mesonychia (extinct) Notoungulata... Families 17, See classification The diverse and interesting order Carnivora IPA: (from Latin carÅ (stem carn-) flesh, + vorÄre to devour) includes over 260 placental mammals. ... Genera Alopex Atelocynus Canis Cerdocyon Chrysocyon Cuon Dusicyon Fennecus Lycalopex Lycaon Nyctereutes Otocyon Pseudalopex Speothos Urocyon Vulpes Canidae is the family of carnivorous and omnivorous mammals commonly known as canines. ... Binomial name Urocyon cinereoargenteus (Schreber, 1775) The Gray Fox (Urocyon cinereoargenteus) is a species of fox ranging from southern Canada, throughout most of the lower United States and Central America, to Venezuela. ... Binomial name Urocyon littoralis (Baird, 1857) The Island Fox (Urocyon littoralis) is a small fox that is native to six of the eight Channel Islands of California. ...
The genus Urocyon is a genus contains two (possibly three) Western Hemisphere foxes in the family Canidae, the Gray Fox (Urocyon cinereoargenteus) and the closely-related Island Fox (Urocyon littoralis). They are the only canids able to climb trees. Urocyon is one of the oldest fox genera still in existence. A third species, apparently close to extinction or even already extinct, is (or was until recently) found on the island of Cozumel, Mexico (Cuarón et al., 2004).The Cozumel Fox, which has not been scientifically described to date, is a dwarf form like the Island Fox but a bit larger, being up to three-quarters the size of the Grey Fox (Gompper et al., 2006). In biology, a genus (plural genera) is a taxonomic grouping. ... Genera Alopex Atelocynus Canis Cerdocyon Chrysocyon Cuon Dusicyon Fennecus Lycalopex Lycaon Nyctereutes Otocyon Pseudalopex Speothos Urocyon Vulpes Canidae is the family of carnivorous and omnivorous mammals commonly known as canines. ... Binomial name Urocyon cinereoargenteus (Schreber, 1775) The Gray Fox (Urocyon cinereoargenteus) is a species of fox ranging from southern Canada, throughout most of the lower United States and Central America, to Venezuela. ... Binomial name Urocyon littoralis (Baird, 1857) The Island Fox (Urocyon littoralis) is a small fox that is native to six of the eight Channel Islands of California. ... Location of Cozumel State Quintana Roo Presidente municipal Gustavo Ortega JoaquÃn Area –Land –Water 647 km² Population –Total (2003) –Density about 90,000 (2003) Time zone UTC –6 Latitude Longitude 20°30′ N 86°57′ W Cozumel (Mayan: Island of the Swallows) is an island in the Caribbean Sea... Binomial name Urocyon sp. ... Insular dwarfism is the process and condition of the reduction in size of large animals - almost always mammals - when their gene pool is limited to a very small environment, primarily islands. ...
References
Cuarón, Alfredo D.; Martinez-Morales, Miguel Angel; McFadden, Katherine W.; Valenzuela, David; & Gompper, Matthew E. (2004): The status of dwarf carnivores on Cozumel Island, Mexico. Biodiversity and Conservation13: 317–331. PDF fulltext
Gompper, M. E.; Petrites, A. E. & Lyman, R. L. (2006): Cozumel Island fox (Urocyon sp.) dwarfism and possible divergence history based on subfossil bones. J. Zool.270(1): 72–77. DOI:10.1111/j.1469-7998.2006.00119.x (HTML abstract)
Urocyon cinereoargenteus, the gray fox, commonly inhabits the wooded and brushy regions of northern Colombia, Venezuela, Central America, and the southwestern, western (except Rocky Mountains region and Washington state) and eastern United States.
The introduction of the red fox (Vulpesvulpes) into North America from Europe in the 1600's and increased agricultural development are implicated in the decline of Urocyon populations in Canada.
Urocyon is one of the earliest foxes to appear in the fossil record.
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