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Eoconodon ✝

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Description

Eoconodon is an extinct genus of triisodontid mesonychid that existed during the early Paleocene of North America. Characteristics of the genus include massive jaws, blunt builds, and strong canine teeth.

From Wikipedia article at https://en.wikipedia.org/wiki/Eoconodon, which is released under the Creative Commons Attribution-Share-Alike License 3.0.

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4832362	https://www.gbif.org/species/4832362
PaleoBioDB ID (PBDB)	42900	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=42900

Rank

genus

Taxonomy (GBIF)

Life : Animalia : Chordata : Mammalia : Cetacea : Triisodontidae : Eoconodon

Taxonomy (PBDB)

Life : Animalia : Chordata : Mammalia : Acreodi : Triisodontidae : Eoconodon

Taxonomic Status (GBIF)

accepted

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Triploblastica	Lankester 1877
-	Nephrozoa	Jondelius et al. 2002
-	Deuterostomia	Grobben 1908
phylum	Chordata	Haeckel 1847
subphylum	Vertebrata	Lamarck 1801
superclass	Gnathostomata	Gegenbauer 1874
-	Osteichthyes
-	Sarcopterygii	Romer 1955
subclass	Dipnotetrapodomorpha
subclass	Tetrapodomorpha
-	Tetrapoda
-	Reptiliomorpha	Säve-Söderbergh 1934
-	Anthracosauria	Säve-Söderbergh 1934
-	Batrachosauria
-	Cotylosauria
-	Amniota	Haeckel 1866
-	Synapsida	Osborn 1903
-	Therapsida
infraorder	Cynodontia
-	Epicynodontia	Hopson and Kitching 2001
infraorder	Eucynodontia	Kemp 1982
-	Probainognathia	Hopson 1990
-	Mammaliamorpha	Rowe 1988
-	Mammaliaformes	Rowe 1988
class	Mammalia	Linnaeus 1758
subclass	Tribosphenida
infraclass	Eutheria
order	Acreodi	Matthew 1909
family	Triisodontidae	Scott 1892
genus	Eoconodon	Matthew & Granger 1921

Scientific Name

Eoconodon Matthew & Granger, 1921

Name Published In

Matthew, W. D. & W. Granger. 1921. New genera of Paleocene mammals. American Museum Novitates 13: 1-7.

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Eoconodon	genus	belongs to Mesonychia	stated without evidence	Matthew and Granger, 1921
Eoconodon	genus	belongs to Triisodontinae	stated without evidence	Zhou et al., 1995
Eoconodon	genus	belongs to Cete	stated without evidence	Archibald, 1998
Eoconodon	genus	belongs to Andrewsarchidae	stated without evidence	Thewissen et al., 2001
Eoconodon	genus	belongs to Triisodontidae	stated with evidence	Clemens and Williamson, 2005
Eoconodon	genus	belongs to Triisodontinae	stated without evidence	St. Clair et al., 2010
Eoconodon	genus	belongs to Triisodontidae	stated with evidence	Tabuce et al., 2011
Eoconodon	genus	belongs to Triisodontidae	stated without evidence	Clemens, 2011

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

66.0 - 63.3 Ma
Paleocene

Last Recorded Appearance

66.0 - 56.0 Ma
Paleocene

Environment

terrestrial (based on Eutheria)

Motility

actively mobile (based on Osteichthyes)

Diet

omnivore (based on Triisodontidae)

Taphonomy

phosphatic (based on Vertebrata)

Primary Reference (PBDB)

W. D. Matthew and W. Granger. 1921. New genera of Paleocene mammals. American Museum Novitates 13:1-7

Wikipedia

https://en.wikipedia.org/wiki/Eoconodon

Fossil Distribution

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Eoconodon copanus ✝ species	accepted (GBIF) listed (PBDB)		1	66.0 Ma Late/Upper Cretaceous	66.0 Ma Late/Upper Cretaceous
Eoconodon ginibitohia ✝ species	accepted (GBIF) listed (PBDB)		1	66.0 Ma Late/Upper Cretaceous	66.0 Ma Late/Upper Cretaceous
Eoconodon goodrianus species	accepted (GBIF)	No associated record in PBDB
Eoconodon hutchisoni ✝ species	doubtful (GBIF) listed (PBDB)		4	66.0 Ma Late/Upper Cretaceous	66.0 Ma Late/Upper Cretaceous
Eoconodon nidhoggi ✝ species	accepted (GBIF) listed (PBDB)		3	66.0 Ma Late/Upper Cretaceous	66.0 Ma Late/Upper Cretaceous
Sarcothraustes coryphaeus ✝ species	accepted (GBIF) listed (PBDB)		5	66.0 Ma Late/Upper Cretaceous	66.0 Ma Late/Upper Cretaceous

Synonymy List

Year	Name and Author
1921	Eoconodon Matthew and Granger
1995	Eoconodon Zhou et al. p. 394
1997	Eoconodon McKenna and Bell p. 366
1998	Eoconodon Archibald p. 316
2001	Eoconodon Thewissen et al. p. suppl.
2005	Eoconodon Clemens and Williamson
2010	Eoconodon St. Clair et al.
2011	Eoconodon Clemens
2011	Eoconodon Tabuce et al. p. 152

References

Matthew W. D., Granger W. (1921) New genera of Paleocene mammals, American Museum Novitates 13, 1-7

Zhou X., Zhai R., et al (1995) Skull of a new mesonychid (Mammalia, Mesonychia) from the late Paleocene of China, Journal of Vertebrate Paleontology 15 2, 387-400

McKenna M. C., Bell S. K. (1997) , Classification of Mammals Above the Species Level, 1-640

Archibald J. D. (1998) Archaic ungulates ("Condylarthra"), Evolution of Tertiary Mammals of North America 1, 292-331

Thewissen J. G. M, Williams E. M., et al (2001) Skeletons of terrestrial cetaceans and the relationship of whales to artiodactyls, Nature 413, 277-281

Clemens W. A., Williamson T. E. (2005) A new species of Eoconodon (Triisodontidae, Mammalia) from the San Juan Basin, New Mexico, Journal of Vertebrate Paleontology 25 1, 208-213

St. Clair E. M., Boyer D. M., et al (2010) First records of a triisodontine mammal, Goniacodon levisanus, in the late Paleocene of the Northern Great Plains, North America, Journal of Vertebrate Paleontology 30 2, 604-608

Clemens W. A. (2011) Eoconodon ("Triisodontidae", Mammalia) from the Early Paleocene (Puercan) of northeastern Montana, USA, Palaeontologia Electronica 14 3

Tabuce R., Clavel J., et al (2011) A structural intermediate between triisodontids and mesonychians (Mammalia, Acreodi) from the earliest Eocene of Portugal, Naturwissenschaften 98, 145-155

Amer. Mus. Novit., No. 13 - 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

as per family - via The Interim Register of Marine and Nonmarine Genera

GBIF/Yale University Peabody Museum: Peabody Paleoportal DiGIR Service (VP) - 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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