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Parikimys carpenteri is an extinct species of prehistoric mammal, a multituberculate which existed in the western United States at the end of the Cretaceous period. The species is named "in honor of the DMNS vertebrate paleontologist Ken Carpenter, whose initial field work in the sparse, non-marine Cretaceous exposures of Weld County inspired this project." Fossils are known from the Laramie Formation of Colorado and the Lance Formation of Wyoming.

While the species shares several morphological characteristics with Mesodma, there are a few characters that set it apart. Parikimys is known from a well preserved left dentary containing p4-m2 as well as p3 alveolus. The species differs from similar taxa (Mesodma) based on pyramidal shaped cones on the m1, which are similar to Cimolodon and more primitive than Mesodma . The mesial aspect of the crown is narrow and forms a V-shaped concavity received the distal end of the p4. The cusps of the internal row are mesiodistally offset from the external row and are distinctly taller than the medial row as well.

A second locality in southern Wyoming described Parikimys, but with specimens roughly 20% smaller than those of the original.

References

1. Gregory P. Wilson, Marieke Dechesne & Ingrid R. Anderson (2010). "New Late Cretaceous mammals from northeastern Colorado with biochronologic and biogeographic implications". Journal of Vertebrate Paleontology. 30 (2): 499–520. Bibcode:2010JVPal..30..499W. doi:10.1080/02724631003620955. S2CID 92991955.
2. Wilson et al., 2010, op. cit.
3. Donohue; et al. (2013). "Latest Cretaceous multituberculate of the Black Butte Station local fauna (Lance Formation, southwest Wyoming), with implications for compositional differences among mammalian local fauna of the Western interior". Journal of Vertebrate Paleontology. 33 (3): 677–695. doi:10.1080/02724634.2013.745416. S2CID 55614488.

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

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• Cimolodonts
• Cretaceous mammals
• Fossil taxa described in 2010
• Extinct mammals of North America
• Prehistoric mammal genera
• Cretaceous mammal stubs
• Maastrichtian genera