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Allacerops

Description

Allacerops 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 Central and East Asia.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4830652https://www.gbif.org/species/4830652
PaleoBioDB ID (PBDB)43145https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=43145
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Mammalia : Perissodactyla : Hyracodontidae : Allacerops
Taxonomy (PBDB)Life : Animalia : Chordata : Mammalia : Perissodactyla : Eggysodontidae : Allacerops
Taxonomic Status (GBIF)accepted
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-TriploblasticaLankester 1877
-NephrozoaJondelius et al. 2002
-DeuterostomiaGrobben 1908
phylumChordataHaeckel 1847
subphylumVertebrataLamarck 1801
superclassGnathostomataGegenbauer 1874
-Osteichthyes
-SarcopterygiiRomer 1955
subclassDipnotetrapodomorpha
subclassTetrapodomorpha
-Tetrapoda
-ReptiliomorphaSäve-Söderbergh 1934
-AnthracosauriaSäve-Söderbergh 1934
-Batrachosauria
-Cotylosauria
-AmniotaHaeckel 1866
-SynapsidaOsborn 1903
-Therapsida
infraorderCynodontia
-EpicynodontiaHopson and Kitching 2001
infraorderEucynodontiaKemp 1982
-ProbainognathiaHopson 1990
-MammaliamorphaRowe 1988
-MammaliaformesRowe 1988
classMammaliaLinnaeus 1758
subclassTribosphenida
infraclassEutheria
-PlacentaliaOwen 1837
orderPerissodactyla
-Tapiromorpha
-Ceratomorpha
superfamilyRhinocerotoideaGray 1821
familyEggysodontidaeBreuning 1923
genusAllaceropsWood 1932
Scientific NameAllacerops Wood, 1932
Name Published InJ. Mammalogy, 13
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Allaceropsgenusbelongs to Hyracodontidaestated with evidenceRadinsky, 1966
Allaceropsgenusbelongs to HyracodontidaeimpliedCarroll, 1988
Allaceropsgenussubjective synonym of Eggysodonstated without evidenceProthero and Schoch, 1989
Allaceropsgenussubjective synonym of Eggysodonstated with evidencede Bonis and Brunet, 1995
Allaceropsgenusbelongs to Hyracodontidaestated without evidenceWang and Qiu, 2004
Allaceropsgenusbelongs to Eggysodontinaestated with evidenceBai and Wang, 2012
Allaceropsgenusbelongs to Eggysodontidaestated with evidenceWang et al., 2016
Status (PBDB)extinct
Taxon Size (PBDB)6
First Recorded Appearance37.2 - 33.9 Ma
Paleogene
Last Recorded Appearance28.1 - 23.0 Ma
Cenozoic
Environmentterrestrial (based on Eutheria)
Motilityactively mobile (based on Osteichthyes)
Dietbrowser (based on Ceratomorpha)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)R. L. Carroll. 1988. Vertebrate Paleontology and Evolution
Wikipediahttps://en.wikipedia.org/wiki/Allacerops

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Acerotherium gaudryi
species
accepted (GBIF)No associated record in PBDB
Allacerops gaudryi
species
listed (PBDB)
Allacerops minor
species
accepted (GBIF)
listed (PBDB)
133.9 Ma
Oligocene
33.9 Ma
Oligocene
Allacerops osborniana
species
listed (PBDB)
Allacerops pomeli
species
listed (PBDB)128.1 Ma
Oligocene
28.1 Ma
Oligocene
Allacerops turgaica
species
listed (PBDB)333.9 Ma
Oligocene
28.4 Ma
Oligocene
Eggysodon pomeli
species
accepted (GBIF)No associated record in PBDB
Ronzotherium osborni
species
accepted (GBIF)No associated record in PBDB

Synonymy List

YearName and Author
1932Allacerops Wood
1966Allacerops Radinsky p. 635
1988Allacerops Carroll
2004Allacerops Wang and Qiu p. 136
2012Allacerops Bai and Wang
2016Allacerops Wang et al.

References

Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698
Radinsky L. B. (1966) The families of the Rhinocerotoidea (Mammalia, Perissodactyla), Journal of Mammalogy 47 4, 631-639
Wang B.-Y., Qiu Z.-X. (2004) Discovery of early Oligocene mammalian fossils from Danghe area, Gansu, China, Vertebrata PalAsiatica 42 2, 130-143
Bai B., Wang Y.-Q. (2012) Proeggysodon gen. nov., a primitive Eocene eggysodontine (Mammalia, Perissodactyla) from Erden Obo, Siziwangqi, Nei Mongol, China, Vertebrata PalAsiatica 50 3, 204-218
Wang H., Bai B., et al (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
GBIF/Paleo Database - via The Interim Register of Marine and Nonmarine Genera
Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera
as per family - via The Interim Register of Marine and Nonmarine Genera
J. Mammalogy, 13 - via The Interim Register of Marine and Nonmarine Genera
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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