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Ischyromyidae

Photos

Photo Gallery

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	3240708	https://www.gbif.org/species/3240708
PaleoBioDB ID (PBDB)	41390	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=41390

Rank

family

Taxonomy (GBIF,PBDB)

Life : Animalia : Chordata : Mammalia : Rodentia : Ischyromyidae

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
family	Ischyromyidae	Alston 1876

Scientific Name

Ischyromyidae

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Ischyromyidae	family	belongs to Simplicidentata	stated without evidence	Flower and Lydekker, 1891
Ischyromyidae	family	belongs to Sciuromorpha	stated without evidence	Hay, 1902
Ischyromyidae	family	belongs to Simplicidentata	stated without evidence	Lambe, 1908
Ischyromyidae	family	belongs to Protrogomorpha	stated without evidence	Wood, 1958
Ischyromyidae	family	belongs to Protrogomorpha	implied	McKenna and Bell, 1997
Ischyromyidae	family	belongs to Sciuromorpha	stated without evidence	Dunn and Rasmussen, 2007
Ischyromyidae	family	belongs to Rodentia	stated without evidence	Korth, 2014

Status (PBDB)

extant

Taxon Size (PBDB)

163

Extant Size (PBDB)

4 (2.5%)

First Recorded Appearance

58.7 - 55.8 Ma
Paleogene

Environment

terrestrial (based on Eutheria)

Motility

actively mobile (based on Osteichthyes)

Diet

herbivore (based on Rodentia)

Taphonomy

phosphatic (based on Vertebrata)

Primary Reference (PBDB)

M. C. McKenna and S. K. Bell. 1997. Classification of Mammals Above the Species Level

Fossil Distribution

Subtaxa

Name	Status	Fossil Occurrences	Oldest	Youngest
Ailuravinae ✝ subfamily	listed (PBDB)	67	56.0 Ma Paleocene	37.2 Ma Eocene
Ischyromyinae subfamily	listed (PBDB)	3	48.6 Ma Eocene	0 Ma Extant
Microparamyinae ✝ subfamily	listed (PBDB)	161	58.7 Ma Paleocene	40.4 Ma Eocene
Paramyinae ✝ subfamily	listed (PBDB)	78	55.8 Ma Eocene	33.9 Ma Oligocene
Pseudoparamyinae ✝ subfamily	listed (PBDB)	1	41.3 Ma Eocene	41.3 Ma Eocene
Abrosomys ✝ genus	accepted (GBIF) listed (PBDB)	1	48.6 Ma Eocene	48.6 Ma Eocene
Acritoparamys ✝ genus	accepted (GBIF) listed (PBDB)	60	56.8 Ma Paleocene	50.3 Ma Eocene
Ailuravus ✝ genus	accepted (GBIF) listed (PBDB)	11	56.0 Ma Paleocene	41.3 Ma Eocene
Apatosciuravus ✝ genus	accepted (GBIF) listed (PBDB)	4	55.8 Ma Eocene	55.8 Ma Eocene
Churcheria ✝ genus	accepted (GBIF) listed (PBDB)	2	46.2 Ma Eocene	40.4 Ma Eocene
Decticadapis ✝ genus	doubtful (GBIF) listed (PBDB)
Eohaplomys ✝ genus	accepted (GBIF) listed (PBDB)	13	46.2 Ma Eocene	46.2 Ma Eocene
Eosischyromys ✝ genus	accepted (GBIF) listed (PBDB)	2	48.6 Ma Eocene	48.6 Ma Eocene
Euromys ✝ genus	accepted (GBIF) listed (PBDB)	3	56.0 Ma Paleocene	55.8 Ma Eocene
Franimys ✝ genus	accepted (GBIF) listed (PBDB)	9	56.8 Ma Paleocene	48.6 Ma Eocene
Hulgana ✝ genus	accepted (GBIF) listed (PBDB)	2	37.2 Ma Eocene	37.2 Ma Eocene
Ischyromys ✝ genus	accepted (GBIF) listed (PBDB)	135	46.2 Ma Eocene	33.3 Ma Oligocene
Lophiparamys ✝ genus	accepted (GBIF) listed (PBDB)	10	55.8 Ma Eocene	55.8 Ma Eocene
Manitsha ✝ genus	accepted (GBIF) listed (PBDB)	1	33.9 Ma Oligocene	33.9 Ma Oligocene
Meldimys ✝ genus	accepted (GBIF) listed (PBDB)	7	56.0 Ma Paleocene	55.8 Ma Eocene
Metaparamys ✝ genus	accepted (GBIF) listed (PBDB)	1	37.2 Ma Eocene	37.2 Ma Eocene
Microparamys ✝ genus	accepted (GBIF) listed (PBDB)	141	58.7 Ma Paleocene	40.4 Ma Eocene
Mytonomys ✝ genus	accepted (GBIF) listed (PBDB)	29	55.8 Ma Eocene	37.2 Ma Eocene
Notoparamys ✝ genus	accepted (GBIF) listed (PBDB)	4	55.8 Ma Eocene	55.8 Ma Eocene
Pantrogna ✝ genus	accepted (GBIF) listed (PBDB)	4	56.0 Ma Paleocene	55.8 Ma Eocene
Paramys ✝ genus	accepted (GBIF) listed (PBDB)	351	56.8 Ma Paleocene	37.2 Ma Eocene
Patriarchamys ✝ genus	accepted (GBIF) listed (PBDB)	1	41.3 Ma Eocene	41.3 Ma Eocene
Pelycomys ✝ genus	accepted (GBIF) listed (PBDB)	11	37.2 Ma Eocene	33.9 Ma Oligocene
Plesiarctomys ✝ genus	accepted (GBIF) listed (PBDB)	14	48.6 Ma Eocene	37.2 Ma Eocene
Pseudoparamys ✝ genus	accepted (GBIF) listed (PBDB)	10	56.0 Ma Paleocene	55.8 Ma Eocene
Pseudotomus ✝ genus	accepted (GBIF) listed (PBDB)	36	50.3 Ma Eocene	37.2 Ma Eocene
Quadratomus ✝ genus	accepted (GBIF) listed (PBDB)	17	50.3 Ma Eocene	40.4 Ma Eocene
Rapamys ✝ genus	accepted (GBIF) listed (PBDB)	9	46.2 Ma Eocene	40.4 Ma Eocene
Sparnacomys ✝ genus	accepted (GBIF) listed (PBDB)	2	56.0 Ma Paleocene	56.0 Ma Paleocene
Strathcona ✝ genus	accepted (GBIF) listed (PBDB)	2	55.8 Ma Eocene	55.8 Ma Eocene
Taishanomys ✝ genus	accepted (GBIF) listed (PBDB)	2	55.8 Ma Eocene	55.8 Ma Eocene
Tapomys ✝ genus	listed (PBDB)	2	46.2 Ma Eocene	46.2 Ma Eocene
Tapomys ✝ genus	accepted (GBIF) listed (PBDB)	62	56.0 Ma Paleocene	37.2 Ma Eocene
Thisbemys ✝ genus	accepted (GBIF) listed (PBDB)	52	55.8 Ma Eocene	46.2 Ma Eocene
Tillomys ✝ genus	accepted (GBIF) listed (PBDB)	7	50.3 Ma Eocene	50.3 Ma Eocene

Synonymy List

Year	Name and Author
1876	Ischyromyidae Alston
1891	Ischyromyidae Flower and Lydekker p. 91
1902	Ischyromyidae Hay p. 723
1908	Ischyromyidae Lambe
1958	Ischyromyidae Wood p. 172
1997	Ischyromyidae McKenna and Bell
2007	Ischyromyidae Dunn and Rasmussen p. 988
2014	Ischyromyidae Korth p. 374

Year	Name and Author
1876	Ischyromyidae Alston
1891	Ischyromyidae Flower and Lydekker p. 91
1902	Ischyromyidae Hay p. 723
1908	Ischyromyidae Lambe
1958	Ischyromyidae Wood p. 172
1997	Ischyromyidae McKenna and Bell
2007	Ischyromyidae Dunn and Rasmussen p. 988
2014	Ischyromyidae Korth p. 374

References

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

Hay O. P. (1902) , Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey 179, 1-868

Lambe L. M. (1908) The Vertebrata of the Oligocene of the Cypress Hills, Saskatchewan, Contributions to Canadian Palaeontology 3 4, 1-65 doi:10.5962/bhl.title.61444

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

Dunn R. H., Rasmussen D. T. (2007) Skeletal morphology and locomotor behavior of Pseudotomus eugenei (Rodentia, Paramyinae) from the Uinta Formation, Utah, Journal of Vertebrate Paleontology 27 4, 987-1006

Korth W. W. (2014) Rodents (Mammalia) from the Whitneyan (Middle Oligocene) Cedar Pass Fauna of South Dakota, Annals of Carnegie Museum 82 4, 373-398 doi:10.2992/007.082.0404

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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