Cimolodonta

Lower jaw of Cimexomys, from Palaeos.

Belongs within: Multituberculata.
Contains: Ptilodontoidea.

The Cimolodonta are a group of multituberculate mammals known from the Early Cretaceous to the Eocene, including all multituberculates to survive the end of the Cretaceous (Kielan-Jaworowska & Hurum 2001).

Characters (from Kielan-Jaworowska & Hurum 2001): Enamel prismatic; dental formula 2.0.1–4.2/1.0.1–2.2; I1 absent, I2 single- or two-cusped, I3 small, single-cusped; p1 and p2 absent, p3, if present, peg-like, non-functional; p4 primitively arcuate with oblique ridges, single or no posterobuccal cusp present.

Cimolodonta [Boffiini]
    |--Barbatodon Râdulescu & Samson 1986 K-JH01
    |--Dakotamys Eaton 1995 K-JH01
    |    `--D. malcolmi K-JH01
    |--Bryceomys Eaton 1995 K-JH01
    |    `--B. fumosus K-JH01
    |--Paracimexomys Archibald 1982 K-JH01
    |    |--P. crossi K-JH01
    |    `--P. robinsoni K-JH01
    |--Cimexomys Sloan & van Valen 1965 K-JH0
    |    |--C. antiquus D07
    |    |--C. gratus D07
    |    |--C. gregoryi D07
    |    |--C. hausoi D07
    |    |--C. judithae K-JH01
    |    |--C. magnus D07
    |    `--C. minor D07
    `--+--Boffius Vianey-Liaud 1979 [Boffiidae] K-JH01
       |--Ptilodontoidea K-JH01
       `--Taeniolabidoidea K-JH97
            |--Cimolomyidae K-JH01
            |    |--Meniscoessus Cope 1882 K-JH01
            |    |--Cimolomys Marsh 1889 K-JH01
            |    |--Essonodon Simpson 1927 K-JH01
            |    `--Buginbaatar Kielan-Jaworowska & Sochava 1969 [Buginbaatarinae] K-JH01
            |         `--B. transaltaiensis Kielan-Jaworowska & Sochava 1969 K-JH97
            `--+--Djadochtatherioidea K-JH01
               |--Kogaionidae K-JH01
               |    |--Hainina Vianey-Liaud 1979 K-JH01
               |    `--Kogaionon Râdulescu & Samson 1996 K-JH01
               |--Eucosmodontidae K-JH01
               |    |--Eucosmodon Matthew & Granger 1921 K-JH01
               |    |--Stygimys Sloan & van Valen 1965 K-JH01
               |    `--Clemensodon Krause 1992 K-JH01
               |--Microcosmodontidae K-JH01
               |    |--Microcosmodon Jepsen 1930 K-JH01
               |    |--Pentacosmodon Jepsen 1940 K-JH01
               |    `--Acheronodon Archibald 1982 K-JH01
               `--Taeniolabididae K-JH01
                    |--Prionessus Matthew & Granger 1925 K-JH01
                    |--Sphenopsalis Matthew, Granger & Simpson 1928 K-JH01
                    |--Lambdopsalis Chow & Qi 1978 K-JH01
                    |    `--L. bulla K-JH97
                    |--Catopsalis Cope 1882 K-JH01
                    |    `--C. joyneri K-JH01
                    `--Taeniolabis Cope 1882 K-JH01
                         |--T. lamberti D07
                         |--T. sulcatus D07
                         `--T. taoensis K-JH97

*Type species of generic name indicated

REFERENCES

[D07] Dixon, D. 2007. The Complete Illustrated Encyclopedia of Dinosaurs & Prehistoric Creatures. Hermes House: London.

[K-JH97] Kielan-Jaworowska, Z., & J. H. Hurum. 1997. Djadochtatheria - a new suborder of multituberculate mammals. Acta Palaeontologica Polonica 42 (2): 201–242.

[K-JH01] Kielan-Jaworowska, Z., & J. H. Hurum. 2001. Phylogeny and systematics of multituberculate mammals. Palaeontology 44 (3): 389–429.