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Cimexomys

Description

Cimexomys is an extinct North American mammal that lived from the Upper Cretaceous to the Paleocene. For a while, it shared the world with dinosaurs, but outlived them. It was a member of the extinct order Multituberculata and lies within the suborder Cimolodonta. It is perhaps a member of the Paracimexomys group, though it's not certain.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4831396https://www.gbif.org/species/4831396
PaleoBioDB ID (PBDB)39784https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=39784
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Mammalia : Taeniolabidae : Cimexomys
Taxonomy (PBDB)Life : Animalia : Chordata : Mammalia : Multituberculata : Cimexomys
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
-Allotheria
orderMultituberculataCope 1884
suborderCimolodonta
genusCimexomysSloan & Van Valen 1965
Scientific NameCimexomys Sloan & Van Valen, 1965
Name Published InScience, N. Y. 148
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Cimexomysgenusbelongs to Ectypodidaestated with evidenceSloan and Van Valen, 1965
Cimexomysgenusbelongs to Neoplagiaulacidaestated without evidenceClemens and Kielan-Jaworowska, 1979
Cimexomysgenusbelongs to MultituberculataimpliedMcKenna and Bell, 1997
Cimexomysgenusbelongs to Cimolodontastated with evidenceKielan-Jaworowska and Hurum, 2001
Cimexomysgenusbelongs to Cimolodontastated without evidenceKielan-Jaworowska et al., 2004
Cimexomysgenusbelongs to Multituberculatastated without evidenceMiddleton and Dewar, 2004
Status (PBDB)extinct
Taxon Size (PBDB)7
First Recorded Appearance85.8 - 83.5 Ma
Late/Upper Cretaceous
Last Recorded Appearance66.0 - 63.3 Ma
Paleocene
Environmentterrestrial (based on Mammalia)
Motilityactively mobile (based on Osteichthyes)
Dietherbivore (based on Multituberculata)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)R. E. Sloan and L. Van Valen. 1965. Cretaceous mammals from Montana. Science 148(3667):220-227
Wikipediahttps://en.wikipedia.org/wiki/Cimexomys

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Cimexomys antiquus
species
accepted (GBIF)
listed (PBDB)
385.8 Ma
Late/Upper Cretaceous
83.5 Ma
Late/Upper Cretaceous
Cimexomys arapahoensis
species
accepted (GBIF)
listed (PBDB)
166.0 Ma
Late/Upper Cretaceous
66.0 Ma
Late/Upper Cretaceous
Cimexomys gregoryi
species
accepted (GBIF)
listed (PBDB)
183.5 Ma
Late/Upper Cretaceous
83.5 Ma
Late/Upper Cretaceous
Cimexomys hausoi
species
accepted (GBIF)
listed (PBDB)
Cimexomys judithae
species
accepted (GBIF)
listed (PBDB)
883.5 Ma
Late/Upper Cretaceous
83.5 Ma
Late/Upper Cretaceous
Cimexomys judithi
species
accepted (GBIF)No associated record in PBDB
Cimexomys minor
species
accepted (GBIF)
listed (PBDB)
2770.6 Ma
Late/Upper Cretaceous
66.0 Ma
Late/Upper Cretaceous

Synonymy List

YearName and Author
1965Cimexomys Sloan and Van Valen
1979Cimexomys Clemens and Kielan-Jaworowska p. 101
1997Cimexomys McKenna and Bell
2001Cimexomys Kielan-Jaworowska and Hurum p. 416
2004Cimexomys Kielan-Jaworowska et al. pp. 254, 322 fig. 8.37A
2004Cimexomys Middleton and Dewar p. 64

References

Sloan R. E., Van Valen L. (1965) Cretaceous mammals from Montana, Science 148 3667, 220-227
Clemens W. A., Kielan-Jaworowska Z. (1979) Multituberculata, Mesozoic Mammals: the first two-thirds of mammalian history, 99-149
McKenna M. C., Bell S. K. (1997) , Classification of Mammals Above the Species Level, 1-640
Kielan-Jaworowska Z., Hurum J. H. (2001) Phylogeny and systematics of multituberculate mammals, Palaeontology 44 3, 389-429
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
Middleton M. D., Dewar E. W. (2004) New mammals from the early Paleocene Littleton fauna (Denver Formation, Colorado), New Mexico Museum of Natural History and Science Bulletin 26, 59-80
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
Science, N. Y. 148 - 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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