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Kuehneotheriidae ✝

Description

Kuehneotheriidae is a family traditionally within 'Symmetrodonta', though now generally considered more basal than true symmetrodonts. All members of Kuehneotheriidae which have been found so far are represented only by teeth, but these teeth have features which have led paleontologists to classify Kuehneotheriidae as very close relatives of the first true mammals. But fossil clades based solely on teeth often lead to difficulties (Ausktribosphenidae are a good example), and it is not possible to draw significant conclusions about mammalian evolution from the Kuehneotheriidae unless some more complete skeletons are found.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4831462https://www.gbif.org/species/4831462
PaleoBioDB ID (PBDB)39863https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=39863
Rankfamily
Taxonomy (GBIF,PBDB)Life : Animalia : Chordata : Mammalia : Kuehneotheriidae
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
familyKuehneotheriidaeKermack et al. 1968
Scientific NameKuehneotheriidae
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Kuehneotheriidaefamilybelongs to Symmetrodontastated without evidenceCassiliano and Clemens, 1979
Kuehneotheriidaefamilybelongs to SymmetrodontaimpliedCarroll, 1988
Kuehneotheriidaefamilybelongs to Symmetrodontastated without evidenceAverianov, 2002
Kuehneotheriidaefamilybelongs to Mammaliastated without evidenceKielan-Jaworowska et al., 2004
Status (PBDB)extinct
Taxon Size (PBDB)5
First Recorded Appearance209 - 201 Ma
Mesozoic
Last Recorded Appearance199 - 183 Ma
Early Jurassic
Environmentterrestrial (based on Mammalia)
Motilityactively mobile (based on Osteichthyes)
Dietinsectivore (based on Mammaliaformes)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)R. L. Carroll. 1988. Vertebrate Paleontology and Evolution
Wikipediahttps://en.wikipedia.org/wiki/Kuehneotheriidae

External Images

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Fluctuodon
genus
listed (PBDB)1209 Ma
Late/Upper Triassic
209 Ma
Late/Upper Triassic
Kotatherium
genus
accepted (GBIF)
listed (PBDB)
1199 Ma
Early Jurassic
199 Ma
Early Jurassic
Kuehneon
genus
accepted (GBIF)
listed (PBDB)
1201 Ma
Early Jurassic
201 Ma
Early Jurassic
Kuehneotherium
genus
accepted (GBIF)
listed (PBDB)
10209 Ma
Late/Upper Triassic
201 Ma
Early Jurassic

Synonymy List

YearName and Author
1968Kuehneotheriidae Kermack et al.
1979Kuehneotheriidae Cassiliano and Clemens p. 151
1988Kuehneotheriidae Carroll
2002Kuehneotheriidae Averianov p. 714
2004Kuehneotheriidae Kielan-Jaworowska et al. pp. 345, 361

References

Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698
Averianov A. O. (2002) Early Cretaceous “symmetrodont” mammal Gobiotheriodon from Mongolia and the classification of “Symmetrodonta, Acta Palaeontologica Polonica 47 4, 705-716
Kielan-Jaworowska Z., Cifelli R. L., et al (2004) Mammals from the age of dinosaurs: Origins, evolution, and structure, Columbia University Press, New York, 1-630
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
Systema Naturae 2000 (2006 version) - 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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