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Palaeocastor

Description

Palaeocastor ('prehistoric beaver') is an extinct genus of beavers that lived in the North American Badlands during the late Oligocene period. Paleocastor was much smaller than modern beavers.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4829191https://www.gbif.org/species/4829191
PaleoBioDB ID (PBDB)41553https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=41553
Rankgenus
Taxonomy (GBIF,PBDB)Life : Animalia : Chordata : Mammalia : Rodentia : Castoridae : Palaeocastor
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
-EuarchontogliresMurphy et al. 2001
-Glires
orderRodentia
superfamilyCastoroideaGray 1821
familyCastoridaeGray 1821
subfamilyPalaeocastorinae
genusPalaeocastorLeidy 1869
Scientific NamePalaeocastor Leidy, 1869
Name Published InJ. Acad. Nat. Sci. Philad., (2) 7
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Palaeocastorgenusbelongs to Castoridaestated without evidenceLeidy, 1869
Palaeocastorgenussubjective synonym of Castorstated with evidenceCope, 1881
Palaeocastorgenussubjective synonym of Steneofiberstated without evidenceHay, 1902
Palaeocastorgenusbelongs to CastoridaeimpliedMcKenna and Bell, 1997
Palaeocastorgenusbelongs to Palaeocastorinaestated with evidenceRybczynski, 2007
Palaeocastorgenusbelongs to Palaeocastorinaestated without evidenceKorth, 2014
Status (PBDB)extinct
Taxon Size (PBDB)4
First Recorded Appearance33.3 - 30.8 Ma
Oligocene
Last Recorded Appearance24.8 - 20.4 Ma
Cenozoic
Environmentterrestrial (based on Eutheria)
Motilityactively mobile (based on Osteichthyes)
Dietbrowser (based on Castoridae)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals.
Wikipediahttps://en.wikipedia.org/wiki/Palaeocastor

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Palaeocastor wahlerti
species
accepted (GBIF)
listed (PBDB)
133.3 Ma
Oligocene
33.3 Ma
Oligocene
Steneofiber peninsulatus
species
accepted (GBIF)No associated record in PBDB

Synonymy List

YearName and Author
1869Palaeocastor Leidy
1997Palaeocastor McKenna and Bell
2007Palaeocastor Rybczynski p. 7
2014Palaeocastor Korth p. 381

References

Alroy J. (2002) Synonymies and reidentifications of North American fossil mammals
McKenna M. C., Bell S. K. (1997) , Classification of Mammals Above the Species Level, 1-640
Rybczynski N. (2007) Castorid phylogenetics: implications for the evolution of swimming and tree-exploitation in beavers, Journal of Mammalian Evolution 14 1, 1-35
Korth W. W. (2014) Rodents (Mammalia) from the Whitneyan (Middle Oligocene) Cedar Pass Fauna of South Dakota, Annals of Carnegie Museum 82 4, 373-398 doi:10.2992/007.082.0404
J. Acad. Nat. Sci. Philad., (2) 7 - 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
SN2000/McKenna & Bell, 1997 - via The Interim Register of Marine and Nonmarine Genera
SN2000: Brands, S. J. (compiler) 1989-2005. Systema Naturae 2000. Amsterdam, The Netherlands (2006 version). Available online at http://sn2000.taxonomy.nl/. - via The Interim Register of Marine and Nonmarine Genera
as per family - 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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