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Gregorymys ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4827849	https://www.gbif.org/species/4827849
PaleoBioDB ID (PBDB)	41655	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=41655

Rank

genus

Taxonomy (GBIF,PBDB)

Life : Animalia : Chordata : Mammalia : Rodentia : Geomyidae : Gregorymys

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	Geomyoidea	Bonaparte 1845
family	Geomyidae	Bonaparte 1845
subfamily	Entoptychinae	Miller and Gidley 1918
genus	Gregorymys	Wood 1936

Scientific Name

Gregorymys Wood, 1936

Name Published In

Amer. Mus. Novit., no. 866

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Gregorymys	genus	belongs to Geomyidae	stated without evidence	Wood, 1936
Gregorymys	genus	belongs to Entoptychinae	stated with evidence	Korth, 1996
Gregorymys	genus	belongs to Geomyidae	implied	McKenna and Bell, 1997

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

46.2 - 40.4 Ma
Eocene

Last Recorded Appearance

20.4 - 5.3 Ma
Miocene

Environment

terrestrial (based on Eutheria)

Motility

actively mobile (based on Osteichthyes)

Diet

browser (based on Geomyidae)

Taphonomy

phosphatic (based on Vertebrata)

Primary Reference (PBDB)

J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals.

Fossil Distribution

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Entoptychus curtus ✝ species	accepted (GBIF) listed (PBDB)		5	26.3 Ma Oligocene	24.8 Ma Oligocene
Entoptychus formosus ✝ species	accepted (GBIF) listed (PBDB)		14	26.3 Ma Oligocene	24.8 Ma Oligocene
Gregorymys douglassi ✝ species	accepted (GBIF) listed (PBDB)		2	30.8 Ma Oligocene	24.8 Ma Oligocene
Gregorymys grantensis species	accepted (GBIF)	No associated record in PBDB
Gregorymys kayi ✝ species	accepted (GBIF) listed (PBDB)
Gregorymys larsoni ✝ species	accepted (GBIF) listed (PBDB)		1	23.0 Ma Miocene	23.0 Ma Miocene
Gregorymys lavsoni species	accepted (GBIF)	No associated record in PBDB
Gregorymys riggsi ✝ species	accepted (GBIF) listed (PBDB)		5	24.8 Ma Oligocene	24.8 Ma Oligocene
Gregorymys riograndensis ✝ species	accepted (GBIF) listed (PBDB)		2	24.8 Ma Oligocene	24.8 Ma Oligocene
Gregorymys veloxikua ✝ species	doubtful (GBIF) listed (PBDB)		1	46.2 Ma Eocene	46.2 Ma Eocene

Synonymy List

Year	Name and Author
1936	Gregorymys Wood
1996	Gregorymys Korth p. 784
1997	Gregorymys McKenna and Bell

References

Alroy J. (2002) Synonymies and reidentifications of North American fossil mammals

Korth W. W. (1996) A New Species of Pleurolocus (Rodentia, Geomyidae) from the Early Miocene (Arikareean) of Nebraska, Journal of Vertebrate Paleontology 16 4, 781-784 doi:10.1080/02724634.1996.10011367

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

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

Amer. Mus. Novit., no. 866 - 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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