Acheronodon is an extinct genus of mammal from the Paleocene of North America. It is a member of the extinct order Multituberculata. It's within the suborder of Cimolodonta, and the family Microcosmodontidae. The genus Acheronodon was named by Archibald JD in 1982.

The species Acheronodon garbani, also named by Archibald, is known from fossils found in the Puercan (Paleocene)_age formations of Tullock Formation in Montana (USA) and possible specimens from the Porcupine Hills in Alberta, Canada. The holotype was found in Montana.

References

• Archibald (1982), A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana. Univ. Calif. Publ. Geol. Sci. 122, p.1-286.
• Kielan-Jaworowska Z & Hurum JH (2001), Phylogeny and Systematics of multituberculate mammals. Paleontology 44, p.389-429.
• Much of this information has been derived from [1] (http://home.arcor.de/ktdykes/taenio.htm) MESOZOIC MAMMALS; Eucosmodontidae, Microcosmodontidae and Taeniolabidoidea, an internet directory.