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{{Short description|Extinct genus of mammal}}
{{orphan|date=October 2013}}
{{Automatic taxobox

| fossil_range = [[Oligocene]], {{fossil range|33.9|23.03}}
{{Italic title}}
| taxon = Eggysodon
{{Taxobox
| authority = Roman, 1910
| fossil range = [[Oligocene]], {{fossil range|33.9|23.03}}
| name = ''Eggysodon''
| type_species = ''Eggysodon osborni''
| type_species_authority = Schlosser, 1902
| image = Eggysodon turgaica.png
| image_alt = A small, brown, horselike animal with a broad upper lip and small eyes
| image_caption = A restoration of ''Eggysodon turgaica''
| regnum = [[Animal]]ia
| phylum = [[Chordate|Chordata]]
| classis = [[Mammal]]ia
| ordo = [[Perissodactyla]]
| familia = †[[Hyracodontidae]]
| subfamilia = †[[Eggysodontinae]]
| genus = '''''Eggysodon'''''
| genus_authority = Roman, 1910
| subdivision_ranks = Species
| subdivision_ranks = Species
| subdivision =
| subdivision =
* ''E. turgaica''
* ''E. cadibonense'' (Roger, 1898)
* ''E. gaudryi'' (Rames, 1886)
| synonyms = ''Allacerops''<ref name="Cladistic analysis">{{cite journal | last=Cerdeño | first=Esperanza | date={{nowrap|14 August 1995}} | title=Cladistic Analysis of the Family Rhinocerotidae (Perissodactyla) | url=http://digitallibrary.amnh.org/dspace/bitstream/handle/2246/3566//v2/dspace/ingest/pdfSource/nov/N3143.pdf?sequence=1 | accessdate={{nowrap|28 October 2013}} | format=PDF | publisher =[[American Museum of Natural History]] | place=[[New York, NY]] | page=4}}</ref>
* ''E. osborni''
* ''E. pomeli'' (Roman, 1910)
* ''E. reichenaui'' (Deninger, 1903)
}}
}}


'''''Eggysodon''''' is an extinct genus of [[odd-toed ungulate]]. It was a small, ground-dwelling browser, and fossils have been found in [[Oligocene]] rocks of [[Germany]].<ref name="PDB">{{cite web | url=http://fossilworks.org/bridge.pl?action=taxonInfo&taxon_no=43151 | title= Eggysodon | website=[[Paleobiology Database]] | accessdate={{nowrap|28 October 2013}}}}</ref> A closely related genus, but with a greater number of [[incisor]]s and [[premolar]]s, has been found in Oligocene rocks in [[Khazakhstan]]. The genus, ''Tenisia'', was described in 1915.<ref>{{cite web | url=http://www.sciencedirect.com/science/article/pii/S001669959380054U | title=Tenisia gen. nov.: Taxonomic revaluation of the Asian Oligocene Rhinocerotoid Eggysodon turgacum (Borissiak, 1915) (Mammalia, Perissodactyla, Hyracodontidae) | website=[[ScienceDirect]] | last=Borissiak}}</ref> ''Eggysodon'' may have been related to ''Preaceratherium'', and both had tusklike canines and smaller, and fewer, incisors.<ref>{{cite journal | last=Radinsky | first=Leonard B. | periodical=[[Journal of Mammalogy]] | date={{nowrap|November 1966}} | title=THE FAMILIES OF THE RHINOCEROTOIDEA (MAMMALIA, PERISSODACTYLA) | url=http://www.rhinoresourcecenter.com/pdf_files/117/1178937319.pdf | volume=47 | accessdate={{nowrap|29 October 2013}} | format=PDF | jstor=1377893}}</ref> It is also related to ''Prohyracodon'', and is synonymous with ''Allacerops''.<ref name="Cladistic analysis" />
'''''Eggysodon''''' is an extinct genus of [[odd-toed ungulate]] belong to the rhinoceros-like family Eggysodontidae. It was a small, ground-dwelling browser, and fossils have been found in [[Oligocene]] deposits throughout [[Europe]].<ref name="PDB">{{cite web | url=http://www.fossilworks.org/cgi-bin/bridge.pl?action=taxonInfo&taxon_no=43151 | title= Eggysodon | website=[[Paleobiology Database]] | accessdate=28 October 2013}}</ref> ''Eggysodon'' may have been related to ''Preaceratherium'', and both had tusklike canines and smaller, and fewer, incisors.

''[[Allacerops]]'' (=''Teniseggysodon''), a close relative of ''Eggysodon'', was synonymized with ''Eggysodon'' by Heissig (1989), but is now considered a distinct genus.<ref>Heissig, K., 1989. Rhinocerotidae. In D. R. Prothero and R. M. Schoch, (eds.), The evolution of perissodactyls, pp.399-417. New York: Oxford Univ. Press.</ref><ref>B.-Y. Wang and Z.-X. Qiu. 2004. Discovery of early Oligocene mammalian fossils from Danghe area, Gansu, China. Vertebrata PalAsiatica 42(2):130-143</ref><ref>B. Bai and Y.-Q. Wang. 2012. Proeggysodon gen. nov., a primitive Eocene eggysodontine (Mammalia, Perissodactyla) from Erden Obo, Siziwangqi, Nei Mongol, China. Vertebrata PalAsiatica 50(3):204-218</ref><ref>H. Wang, B. Bai, J. Meng and Y. Wang. 2016. Earliest known unequivocal rhinocerotoid sheds new light on the origin of Giant Rhinos and phylogeny of early rhinocerotoids. Scientific Reports 6:39607:1-9</ref>


==References==
==References==
{{reflist}}
{{Reflist}}

{{Taxonbar|from=Q4529753}}

[[Category:Oligocene rhinoceroses]]
[[Category:Oligocene mammals of Europe]]
[[Category:Hyracodonts]]
[[Category:Prehistoric mammal genera]]


[[Category:Prehistoric rhinoceroses]]
[[Category:Oligocene odd-toed ungulates]]
[[Category:Prehistoric mammals of Europe]]


{{paleo-oddtoedungulate-stub}}
{{paleo-oddtoedungulate-stub}}

Latest revision as of 05:45, 17 December 2021

Eggysodon
Temporal range: Oligocene, 33.9–23.03 Ma
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Perissodactyla
Family: Eggysodontidae
Genus: Eggysodon
Roman, 1910
Type species
Eggysodon osborni
Schlosser, 1902
Species
  • E. cadibonense (Roger, 1898)
  • E. gaudryi (Rames, 1886)
  • E. osborni
  • E. pomeli (Roman, 1910)
  • E. reichenaui (Deninger, 1903)

Eggysodon is an extinct genus of odd-toed ungulate belong to the rhinoceros-like family Eggysodontidae. It was a small, ground-dwelling browser, and fossils have been found in Oligocene deposits throughout Europe.[1] Eggysodon may have been related to Preaceratherium, and both had tusklike canines and smaller, and fewer, incisors.

Allacerops (=Teniseggysodon), a close relative of Eggysodon, was synonymized with Eggysodon by Heissig (1989), but is now considered a distinct genus.[2][3][4][5]

References[edit]

  1. ^ "Eggysodon". Paleobiology Database. Retrieved 28 October 2013.
  2. ^ Heissig, K., 1989. Rhinocerotidae. In D. R. Prothero and R. M. Schoch, (eds.), The evolution of perissodactyls, pp.399-417. New York: Oxford Univ. Press.
  3. ^ B.-Y. Wang and Z.-X. Qiu. 2004. Discovery of early Oligocene mammalian fossils from Danghe area, Gansu, China. Vertebrata PalAsiatica 42(2):130-143
  4. ^ B. Bai and Y.-Q. Wang. 2012. Proeggysodon gen. nov., a primitive Eocene eggysodontine (Mammalia, Perissodactyla) from Erden Obo, Siziwangqi, Nei Mongol, China. Vertebrata PalAsiatica 50(3):204-218
  5. ^ H. Wang, B. Bai, J. Meng and Y. Wang. 2016. Earliest known unequivocal rhinocerotoid sheds new light on the origin of Giant Rhinos and phylogeny of early rhinocerotoids. Scientific Reports 6:39607:1-9