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Oreodontoides

Description

Oreodontoides is an extinct genus of oreodont of the family Merycoidodontidae endemic to North America. It lived during the Late Oligocene to Early Miocene (24.8—20.4 mya), existing for approximately 5 million years. Fossils have been uncovered throughout the western U.S. including at sites in Oregon, Wyoming, and South Dakota.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4970449https://www.gbif.org/species/4970449
PaleoBioDB ID (PBDB)42505https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=42505
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Oreodontoides
Taxonomy (PBDB)Life : Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Oreodontoides
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
subfamilyMerychyinaeSimpson 1945
genusOreodontoidesThorpe 1921
Scientific NameOreodontoides (Thorpe, 1921)
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Oreodontoidesgenusbelongs to Merycoidodontidaestated without evidenceThorpe, 1923
Oreodontoidesgenussubjective synonym of Merychyusstated without evidenceLoomis, 1924
Oreodontoidesgenusbelongs to Merycoidodontidaestated without evidenceThorpe, 1937
Oreodontoidesgenusbelongs to Merychyinaestated with evidenceSchultz and Falkenbach, 1947
Oreodontoidesgenusbelongs to Merycoidodontidaestated without evidenceLander, 1998
Oreodontoidesgenusbelongs to Merychyinaestated with evidenceStevens and Stevens, 2007
Status (PBDB)extinct
Taxon Size (PBDB)3
First Recorded Appearance30.8 - 24.8 Ma
Oligocene
Last Recorded Appearance24.8 - 20.4 Ma
Cenozoic
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 Eporeodons, with descriptions of new genera and species. American Journal of Science 202:93-111
Wikipediahttps://en.wikipedia.org/wiki/Oreodontoides

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Eporeodon oregonensis
species
accepted (GBIF)
listed (PBDB)
930.8 Ma
Oligocene
24.8 Ma
Oligocene
Merychyus curtus
species
accepted (GBIF)
listed (PBDB)

Synonymy List

YearName and Author
1921Eporeodon (Oreodontoides) Thorpe p. 107 figs. 11 - 13
1923Oreodontoides Thorpe
1937Oreodontoides Thorpe p. 213
1947Oreodontoides Schultz and Falkenbach p. 250 figs. 1, 10, 11, 15-17
1998Oreodontoides Lander
2007Oreodontoides Stevens and Stevens p. 164

References

Thorpe M. R. (1921) John Day Eporeodons, with descriptions of new genera and species, American Journal of Science 202, 93-111
Thorpe M. R. (1937) The Merycoidodontidae, an extinct group of ruminant mammals, Peabody Museum of Natural History Memoir 3 4, 1-428
Schultz C. B., Falkenbach C. H. (1947) Merychyinae, a subfamily of oreodonts, Bulletin of the American Museum of Natural History 88 4, 157-286
Lander B. (1998) Oreodontoidea, Evolution of Tertiary mammals of North America, 402-425
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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