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Sespia

Description

Sespia ("of Sespe Creek") is an extinct genus of oreodont endemic to North America. They lived during the Late Oligocene 26.3—24.8 mya, existing for approximately 1.5 million years. Sespia was cat to goat-sized and desert-dwelling. The genus was closely related to the larger Leptauchenia.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4835297https://www.gbif.org/species/4835297
PaleoBioDB ID (PBDB)42510https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=42510
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Sespia
Taxonomy (PBDB)Life : Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Sespia
Taxonomic Status (GBIF)doubtful
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
subfamilyLeptaucheniinaeSchultz and Falkenbach 1940
genusSespiaStock 1930
Scientific NameSespia Stock, 1930
Name Published InContr. Pal. Carnegie Inst., No. 404
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Sespiagenusbelongs to Sespiinistated with evidenceSchultz and Falkenbach, 1968
Sespiagenusbelongs to Sespiinistated without evidenceMcKenna and Bell, 1997
Sespiagenusbelongs to Merycoidodontidaestated without evidenceLander, 1998
Sespiagenusbelongs to Leptaucheniinaestated with evidenceStevens and Stevens, 2007
Status (PBDB)extinct
Taxon Size (PBDB)5
First Recorded Appearance30.8 - 26.3 Ma
Oligocene
Last Recorded Appearance26.3 - 20.4 Ma
Cenozoic
Environmentterrestrial (based on Artiodactyla)
Motilityactively mobile (based on Osteichthyes)
Dietherbivore (based on Merycoidodontidae)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)C. B. Schultz and C. H. Falkenbach. 1968. The Phylogeny of the Oreodonts. Part 1: Merycoidodontinae, Eporeodontinae, and Leptaucheniinae, Three Subfamilies Of Oreodonts, With an Appendix to the Revision Of The Merycoidodontidae, and Part 2. Summary and Conclusions Concerning the Merycoidodontidae. Bulletin of the American Museum of Natural History 139:1-498
Wikipediahttps://en.wikipedia.org/wiki/Sespia

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Leptauchenia californica
species
accepted (GBIF)
listed (PBDB)
730.8 Ma
Oligocene
30.8 Ma
Oligocene
Cyclopidius heterodon
species
accepted (GBIF)
listed (PBDB)
Leptauchenia nitida
species
accepted (GBIF)
listed (PBDB)
3330.8 Ma
Oligocene
30.8 Ma
Oligocene
Sespia ultima
species
accepted (GBIF)
listed (PBDB)

Synonymy List

YearName and Author
1968Sespia Schultz and Falkenbach
1997Sespia McKenna and Bell p. 409
1998Sespia Lander
2007Sespia Stevens and Stevens p. 158

References

Schultz C. B., Falkenbach C. H. (1968) The Phylogeny of the Oreodonts. Part 1: Merycoidodontinae, Eporeodontinae, and Leptaucheniinae, Three Subfamilies Of Oreodonts, With an Appendix to the Revision Of The Merycoidodontidae, and Part 2. Summary and Conclusions Concerning the Merycoidodontidae, Bulletin of the American Museum of Natural History 139, 1-498
McKenna M. C., Bell S. K. (1997) , Classification of Mammals Above the Species Level, 1-640
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
GBIF/Paleo Database - via The Interim Register of Marine and Nonmarine Genera
NZ cross ref or inferred from publ. title - 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
Contr. Pal. Carnegie Inst., No. 404 - 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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