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Cimolodon Temporal range: Late Cretaceous
Premolar of Cimolodon nitidus, view from the outside
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Multituberculata
Family:	†Cimolodontidae
Genus:	†Cimolodon Marsh, 1889
Species
C. akersteni Weaver, Wilson, Krumenacker, McLaughlin, Moore, and Varricchio, 2019 C. electus Fox, 1971 C. nitidus Marsh, 1889 (type) C. parvus Marsh, 1892 C. peregrinus Donohue, Wilson, and Breithaupt, 2013 C. similis Fox, 1971 C. wardi Eaton, 2006

Cimolodon is a genus of the extinct mammal order of Multituberculata within the suborder Cimolodonta and the family Cimolodontidae. Specimens are known from the Late Cretaceous of North America.

Taxonomy

The genus Cimolodon was named by Othniel Charles Marsh in 1889. Kielan-Jaworowska & Hurum (2001) noted that Cimolodon seems to be more closely related to members of their "Paracimexomys" group than to other ptilodontoideans.

Species

Cimolodon electus (Fox R.C. 1971) is known from the Upper Cretaceous of the Upper Milk River Formation in Alberta, Canada. Possible finds have been reported from New Mexico.

Cimolodon nitidus (Marsh O.C. 1889) is known from Late Cretaceous strata of the Lance Formation of Wyoming, Utah, Montana and South Dakota (United States) as well as Alberta and Saskatchewan (Canada). Synonyms include Allacodon lentus (Marsh, 1889); Allacodon rarus (Marsh, 1892); Cimolomys bellus (Marsh, 1889); Cimolomys digona (Marsh, 1899); Cimolomys nitidus; Halodon serratus (Marsh, 1889); Nanomyops minitus (Marsh, 1892); Nanomys minitus (Marsh, 1889); and Ptilodus serratus (Gidley, 1909). Cimolodon parvus (Marsh O.C. 1892) is also known from the Upper Cretaceous Lance Formation of Wyoming. A specimen referred to as C. cf. nitidus has been recovered from the Prince Creek Formation.

Cimolodon similis (Fox R.C. 1971) is known from the Late Cretaceous (Santonian-early Campanian) of Alberta and Utah. C. wardi is known from the Wahweap Formation of Utah.

Cimolodon akersteni is known from the Cenomanian-age Wayan Formation of Idaho.

References

1. Weaver, Lucas N.; Wilson, Gregory P.; Krumenacker, L. J.; McLaughlin, Kayla; Moore, Jason R.; Varricchio, David J. (2019). "New multituberculate mammals from the mid-Cretaceous (lower Cenomanian) Wayan Formation of southeastern Idaho and implications for the early evolution of Cimolodonta". Journal of Vertebrate Paleontology. 39 (2): e1604532. Bibcode:2019JVPal..39E4532W. doi:10.1080/02724634.2019.1604532. S2CID 196655261.
2. S. L. Donohue, G. P. Wilson, and B. H. Breithaupt. 2013. "Latest Cretaceous multituberculates of the Black Butte Station local fauna (Lance Formation, southwestern Wyoming), with implications for compositional differences among mammalian local faunas of the Western Interior". Journal of Vertebrate Paleontology 33(3):677-695
3. ^ J. G. Eaton. 2006. Late Cretaceous mammals from Cedar Canyon, southwestern Utah. Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35:373-402
4. Kielan-Jaworowska Z. & Hurum J.H. (2001). "Phylogeny and Systematics of multituberculate mammals". Paleontology 44, p. 389-429.
5. L. J. Flynn. 1986. "Late Cretaceous mammal horizons from the San Juan Basin, New Mexico". American Museum Novitates 2845:1-30
6. Marsh (1889), "Discovery of Cretaceous Mammalia." Am. J. Sci. (3), 38, p. 177-180.
7. Marsh (1892), "Discovery of Cretaceous Mammalia. Pt. III." Am. J. Sci. (3) xliii, p. 249-262.
8. Thurston, D.K.; Fujita, K. (1994). 1992 Proceedings, International Conference on Arctic Margins. Anchorage, Alaska: U.S. Dept. of the Interior, Minerals Management Service, Alaska Outer Continental Shelf Region. ISBN 978-1125448038.
9. Fox (1971), Early Campanian multituberculates (Mammalia: Allotheria) from the upper Milk River Formation, Alberta. Canadian Journal of Earth Sci 8: 916.
10. J. G. Eaton, S. Diem, J. D. Archibald, C. Schierup, and H. Munk. 1999. "Vertebrate paleontology of the Upper Cretaceous rocks of the Markagunt Plateau, southwestern Utah". In D. D. Gillette (ed.), Vertebrate Paleontology in Utah, Utah Geological Survey Miscellaneous Publication 99-1:323-333
11. L. N. Weaver, G. P. Wilson, L. J. Krumenacker, K. Mclaughlin, J. R. Moore, D. J. Varricchio (2019). "New multituberculate mammals from the mid-Cretaceous (lower Cenomanian) Wayan Formation of southeastern Idaho and implications for the early evolution of Cimolodonta". Journal of Vertebrate Paleontology. 39 (2): e1604532. Bibcode:2019JVPal..39E4532W. doi:10.1080/02724634.2019.1604532.{{cite journal}}: CS1 maint: multiple names: authors list (link)

Further reading

• Simpson (1929), "American Mesozoic Mammalia." Mem. Peabody Mus. Nat. Hist. iii (i), p. 1-235.

v t e Allotheria
Kingdom: Animalia Phylum: Chordata Class: Mammalia Clade: Theriiformes Synapsida see Synapsida Cynodontia see Cynodontia Mammalia see Mammalia Allotheria see below↓
Allotheria Allotheria Haramiyida? Gondwanatheria? Adalatherium Groeberiidae? Ferugliotheriidae? Argentodites? Ferugliotherium LACM 149371? Magallanodon Trapalcotherium Sudamericidae Bharattherium Galulatherium Gondwanatherium Greniodon? Lavanify Patagonia? Sudamerica Vintana Multituberculata Argillomys Baidabatyr? Hahnotherium Janumys Tagaria Tashtykia Gondwanatheria? Hahnodontidae? Allodontoidea Arginbaatar Glirodon Zofiabaatar Allodontidae Ctenacodon Passumys Psalodon Paulchoffatioidea Pinheirodontidae Bernardodon Bructerodon Cantalera Ecprepaulax Gerhardodon Iberodon Lavocatia Pinheirodon Paulchoffatiidae Bathmochoffatia Galveodon Guimarotodon Henkelodon Kielanodon Kuehneodon Meketibolodon Meketichoffatia Paulchoffatia Plesiochoffatia Pseudobolodon Renatodon Rugosodon Sunnyodon Xenachoffatia Plagiaulacoidea Plagiaulacidae Bolodon Morrisonodon Plagiaulax Eobaataridae Cheruscodon Dolichoprion Eobaatar Hakusanobaatar Heishanobaatar Iberica Indobaatar Liaobaatar Loxaulax Monobaatar? Nokerbaatar Parendotherium Sinobaatar Tedoribaatar Teutonodon Albionbaataridae Albionbaatar Kielanobaatar Proalbionbaatar Cimolodonta see below↓
Cimolodonta Cimolodonta Allocodon Ameribaatar Boffius Corriebaatar Fractinus Halodon Uzbekbaatar Viridomys Gondwanatheria? Paracimexomys group Bryceomys Cedaromys Cimexomys Dakotamys Paracimexomys Cimolomyidae Buginbaatar Cimolomys Essonodon Meniscoessus Paressodon Parikimys Kogaionidae Barbatodon Hainina Kogaionon Litovoi Eucosmodontidae Clemensodon Eucosmodon Stygimys Microcosmodontidae Acheronodon Microcosmodon Pentacosmodon Ptilodontoidea Filikomys Neoliotomus Cimolodontidae Anconodon Cimolodon Liotomus Neoplagiaulacidae Cernaysia Ectypodus Krauseia Mesodma Mesodmops Mimetodon Neoplagiaulax Nidimys Parectypodus Paressonodon Xanclomys Xyronomys Ptilodontidae Aenigmamys Baiotomeus Kimbetohia Prochetodon Ptilodus Taeniolabidoidea Bubodens? Catopsalis Erythrobaatar Valenopsalis Yubaatar Lambdopsalidae Lambdopsalis Prionessus Sphenopsalis Taeniolabididae Kimbetopsalis Taeniolabis Djadochtatherioidea Bulganbaatar Chulsanbaatar Nemegtbaatar Sloanbaataridae Kamptobaatar Nessovbaatar Sloanbaatar Djadochtatheriidae Catopsbaatar Djadochtatherium Kryptobaatar Mangasbaatar Tombaatar
See also: Plagiaulacida Category

• Ptilodontoids
• Cretaceous mammals of North America
• Prehistoric mammals of North America
• Milk River Formation
• Prehistoric mammal genera
• Fossil taxa described in 1889