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Eutypomyidae ✝

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Description

Eutypomyidae is a family of extinct rodents from North America and Eurasia thought to be related to modern beavers.

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

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4829441	https://www.gbif.org/species/4829441
PaleoBioDB ID (PBDB)	41565	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=41565

Rank

family

Taxonomy (GBIF,PBDB)

Life : Animalia : Chordata : Mammalia : Rodentia : Eutypomyidae

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
-	Placentalia	Owen 1837
-	Euarchontoglires	Murphy et al. 2001
-	Glires
order	Rodentia
superfamily	Castoroidea	Gray 1821
family	Eutypomyidae	Miller and Gidley 1918

Scientific Name

Eutypomyidae

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Eutypomyidae	family	belongs to Castoroidea	stated without evidence	Wood, 1958
Eutypomyidae	family	belongs to Rodentia	stated without evidence	Johnson, 1966
Eutypomyidae	family	belongs to Castorimorpha	implied	Carroll, 1988
Eutypomyidae	family	belongs to Castoroidea	stated with evidence	Montgelard et al., 2002

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

46.2 - 40.4 Ma
Eocene

Last Recorded Appearance

26.3 - 20.4 Ma
Cenozoic

Environment

terrestrial (based on Eutheria)

Motility

actively mobile (based on Osteichthyes)

Diet

herbivore (based on Rodentia)

Taphonomy

phosphatic (based on Vertebrata)

Primary Reference (PBDB)

R. L. Carroll. 1988. Vertebrate Paleontology and Evolution

Wikipedia

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

Fossil Distribution

Subtaxa

Name	Status	Fossil Occurrences	Oldest	Youngest
Anchitheriomys ✝ genus	accepted (GBIF) listed (PBDB)	28	23.0 Ma Miocene	5.33 Ma Miocene
Eutypomys ✝ genus	accepted (GBIF) listed (PBDB)	28	40.4 Ma Eocene	26.3 Ma Oligocene
Janimus ✝ genus	accepted (GBIF) listed (PBDB)	4	46.2 Ma Eocene	40.4 Ma Eocene
Mattimys ✝ genus	accepted (GBIF) listed (PBDB)	8	55.8 Ma Eocene	50.3 Ma Eocene
Microeutypomys ✝ genus	accepted (GBIF) listed (PBDB)	2	46.2 Ma Eocene	40.4 Ma Eocene

Synonymy List

Year	Name and Author
1918	Eutypomyidae Miller and Gidley
1958	Eutypomyidae Wood p. 172
1966	Eutypomyidae Johnson p. 80
1988	Eutypomyidae Carroll
2002	Eutypomyidae Montgelard et al. p. 229

References

Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698

Wood A. E. (1958) Are there rodent suborders?, Systematic Zoology 7 4, 169-173

Johnson G. D. (1966) Small mammals of the Middle Oligocene of the Big Badlands of South Dakota, Proceedings of the South Dakota Academy of Sciences 45, 78-83

Montgelard C., Bentz S., et al (2002) Molecular systematics of Sciurognathi (Rodentia): the mitochondrial cytochrome b and 12S rRNA genes support the Anomaluroidea (Pedetidae and Anomaluridae), Molecular Phylogenetics and Evolution 22 2, 220-233

Benton, M.J. (ed). (1993). The Fossil Record 2. Chapman & Hall, London, 845 pp. - 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

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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