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Desmatochoerus

Description

Desmatochoerus is a large extinct genus of oreodont of the family Merycoidodontidae, endemic to North America. They lived during the Late Oligocene to Middle Miocene 28.4—16.0 mya, existing for approximately 12 million years. Fossils have been uncovered in several locations in the western U.S.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4970415https://www.gbif.org/species/4970415
PaleoBioDB ID (PBDB)42492https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=42492
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Desmatochoerus
Taxonomy (PBDB)Life : Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Desmatochoerus
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
orderUngulata
orderArtiodactylaOwen 1848
familyMerycoidodontidaeCook 1912
subfamilyPromerycochoerinaeSchultz and Falkenbach 1949
genusDesmatochoerusThorpe 1921
Scientific NameDesmatochoerus (Thorpe, 1921)
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Desmatochoerusgenusbelongs to Desmatochoerinaestated with evidenceSchultz and Falkenbach, 1954
Desmatochoerusgenusbelongs to Promerycochoerinaestated with evidenceStevens and Stevens, 1996
Desmatochoerusgenussubjective synonym of Eporeodonstated without evidenceLander, 1998
Desmatochoerusgenusbelongs to Promerycochoerinaestated with evidenceStevens and Stevens, 2007
Status (PBDB)extinct
Taxon Size (PBDB)8
First Recorded Appearance30.8 - 26.3 Ma
Oligocene
Last Recorded Appearance20.4 - 16.0 Ma
Miocene
Environmentterrestrial (based on Artiodactyla)
Motilityactively mobile (based on Osteichthyes)
Dietherbivore (based on Merycoidodontidae)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)M. R. Thorpe. 1921. John Day Promerycochoeri, with descriptions of five new species and one new subgenus. American Journal of Science 1(3):215-244
Wikipediahttps://en.wikipedia.org/wiki/Desmatochoerus

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Desmatochoerus (Paradesmatochoerus)
subgenus
listed (PBDB)
Desmatochoerus newchicagoensis
species
accepted (GBIF)
listed (PBDB)
Eporeodon thurstoni
species
accepted (GBIF)
listed (PBDB)
Merycochoerus leidyi
species
accepted (GBIF)
listed (PBDB)
123.0 Ma
Miocene
23.0 Ma
Miocene
Mesoreodon megalodon
species
accepted (GBIF)
listed (PBDB)
1730.8 Ma
Oligocene
24.8 Ma
Oligocene
Promerycochoerus hatcheri
species
accepted (GBIF)
listed (PBDB)
230.8 Ma
Oligocene
20.4 Ma
Miocene
Promerycochoerus hesperus
species
accepted (GBIF)
listed (PBDB)
130.8 Ma
Oligocene
30.8 Ma
Oligocene

Synonymy List

YearName and Author
1921Promerycochoerus (Desmatochoerus) Thorpe p. 241 figs. 6A, B
1933Hypselochoerus Loomis
1954Desmatochoerus Schultz and Falkenbach p. 177 figs. 4-7, 18, 23-25
1996Desmatochoerus Stevens and Stevens p. 533
2007Desmatochoerus Stevens and Stevens p. 160

References

Thorpe M. R. (1921) John Day Promerycochoeri, with descriptions of five new species and one new subgenus, American Journal of Science 1 3, 215-244 doi:10.2475/ajs.s5-1.3.215
Loomis F. B. (1933) Three Oreodont Skeletons from the Lower Miocene of the Great Plains, Geological Society America Bulletin 44 4, 723-734
Schultz C. B., Falkenbach C. H. (1954) Desmatochoerinae, a new subfamily of oreodonts, Bulletin of the American Museum of Natural History 105 2
Stevens M. S., Stevens J. B. (1996) Merycoidodontinae and Miniochoerinae, The Terrestrial Eocene-Oligocene Transition in North America, 498-573
Stevens M. S., Stevens J. B. (2007) Family Merycoidodontidae, The Evolution of Artiodactyls, 157-168
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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