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{{Short description|Extinct genus of mammals}}
{{Taxobox
{{Automatic taxobox
| color = pink
| fossil_range = Middle-Late [[Pleistocene]]
| name = ''Hayoceros''
| image = Hayoceros 2.png
| status = fossil
| image = Hayoceros.jpg
| taxon = Hayoceros
| authority = Skinner, 1942
| image_width = 200px
| fossil_range = Mid [[Pleistocene]]
| regnum = [[Animal]]ia
| phylum = [[Chordata]]
| classis = [[Mammal]]ia
| ordo = [[Artiodactyla]]
| familia = [[Antilocapridae]]
| genus = '''''Hayoceros'''''
| genus_authority = Skinner, [[1942]]
| subdivision_ranks = Species
| subdivision_ranks = Species
| subdivision =
| subdivision =
* ''H. barbouri''
* ''H. barbouri''
* ''H. falkenbachi''
* ''H. falkenbachi''
}}
}}
'''''Hayoceros''''' is an extinct pronghorn from [[Nebraska]].


'''''Hayoceros''''' is an extinct [[genus]] of the [[Artiodactyla|artiodactyl]] [[family (biology)|family]] [[Antilocapridae]], endemic to [[North America]] during the [[Pleistocene]] epoch (1.8 [[Annum|mya]]—300,000 years ago), existing for about 1.5 million years.<ref>[http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=41039&is_real_user=1 PaleoBiology Database: ''Dinictis'', basic info]</ref>
It was 1.80 (6 ft) long and had four [[horn]]s, arranged in two pairs. The first pair was forked and located above the [[eye]]s, the second was longer, located on the back of the [[skull]] and not forked. Most likely, males used these to fight in a similar fashion to modern pronghorns, locking horns and then pushing until the opponent gives in.


==Taxonomy==
[[Category:Prehistoric artiodactyls]]
''Hayoceros'' was named by Skinner (1942) and named as a subgenus of ''[[Tetrameryx]]'' by Frick 1937; it was later raised to genus level. It was assigned to the Antilocapridae by Skinner (1942) and Carroll (1988).<ref>M. F. Skinner. 1942. The fauna of Papago Springs Cave, Arizona, and a study of Stockeros; with three new antilocaprines from Nebraska and Arizona. Bulletin of the American Museum of Natural History 80(6):143-220</ref><ref>R. L. Carroll. 1988. Vertebrate Paleontology and Evolution. W. H. Freeman and Company, New York 1-698</ref>


==Morphology==
It was about {{convert|1.8|m|ft|abbr=on}} in body length, and in most respects, resembled modern pronghorns. However, in addition to the pair of forked [[horn (anatomy)|horn]]s located above the eyes, as in modern pronghorns, it also possessed a second, longer and unforked, pair on the back of the [[skull]]. Most likely, males used these to fight in a fashion similar to modern pronghorns, locking horns and then pushing until the opponent gives in.<ref name=EoDP>{{cite book |editor=Palmer, D.|year=1999 |title= The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals|publisher= Marshall Editions|location=London|page= 280|isbn= 1-84028-152-9}}</ref>


==References==
{{paleo-mammal-stub}}
{{Reflist}}
{{even-toed-ungulate-stub}}


{{Taxonbar|from=Q840096}}
[[it:Hayoceros]]

[[pt:Hayoceros]]
[[Category:Prehistoric pronghorns]]
[[Category:Pleistocene Artiodactyla]]
[[Category:Pleistocene mammals of North America]]
[[Category:Prehistoric Artiodactyla genera]]
[[Category:Fossil taxa described in 1942]]


{{paleo-eventoedungulate-stub}}

Revision as of 12:38, 21 December 2023

Hayoceros
Temporal range: Middle-Late Pleistocene
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Antilocapridae
Genus: Hayoceros
Skinner, 1942
Species
  • H. barbouri
  • H. falkenbachi

Hayoceros is an extinct genus of the artiodactyl family Antilocapridae, endemic to North America during the Pleistocene epoch (1.8 mya—300,000 years ago), existing for about 1.5 million years.[1]

Taxonomy

Hayoceros was named by Skinner (1942) and named as a subgenus of Tetrameryx by Frick 1937; it was later raised to genus level. It was assigned to the Antilocapridae by Skinner (1942) and Carroll (1988).[2][3]

Morphology

It was about 1.8 m (5.9 ft) in body length, and in most respects, resembled modern pronghorns. However, in addition to the pair of forked horns located above the eyes, as in modern pronghorns, it also possessed a second, longer and unforked, pair on the back of the skull. Most likely, males used these to fight in a fashion similar to modern pronghorns, locking horns and then pushing until the opponent gives in.[4]

References

  1. ^ PaleoBiology Database: Dinictis, basic info
  2. ^ M. F. Skinner. 1942. The fauna of Papago Springs Cave, Arizona, and a study of Stockeros; with three new antilocaprines from Nebraska and Arizona. Bulletin of the American Museum of Natural History 80(6):143-220
  3. ^ R. L. Carroll. 1988. Vertebrate Paleontology and Evolution. W. H. Freeman and Company, New York 1-698
  4. ^ Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 280. ISBN 1-84028-152-9.