View source for Hahnodon

{{Short description|Extinct genus of mammaliaforms}}
{{Speciesbox
| fossil_range = {{fossil range|145|139}}
| genus = Hahnodon
| parent_authority = [[Denise Sigogneau-Russell|Sigogneau-Russell]], 1991
| species = taqueti
| authority = Sigogneau-Russell, 1991
}}

'''''Hahnodon''''' ("Hahn's tooth") is an [[extinct]] [[genus]] of [[mammaliaform]]s from the Early [[Cretaceous]] [[Ksar Metlili Formation]] in Morocco. Although originally considered to be a relatively early member of the extinct clade [[Multituberculata]], recent studies indicate that it instead is a [[Haramiyida|haramiyid]].<ref>{{Cite web|url=https://www.natureasia.com/en/research/highlight/12522/|title=Fossils: Youngest known haramiyid fossil found in North America &#124; Nature &#124; Nature Portfolio|access-date=2018-05-26|archive-date=2022-05-17|archive-url=https://web.archive.org/web/20220517105652/http://www.natureasia.com/en/research/highlight/12522|url-status=dead}}</ref>

==Fossils and distribution==
''Hahnodon taqueti'' is based on a single lower molar found in Lower Cretaceous [[stratum|strata]] in [[Morocco]].

==Classification==
[[Denise Sigogneau-Russell]] (1991) classified ''Hahnodon'' as a member of Multituberculata, but others later considered it to be related to members of Haramiyida.<ref>Butler, P. M., & Hooker, J. J. (2005). New teeth of allotherian mammals from the English Bathonian, including the earliest multituberculates. Acta Palaeontologica Polonica, 50(2).</ref><ref>S. Anantharaman, G. P. Wilson, D. C. Das Sarma and W. A. Clemens. 2006. A possible Late Cretaceous "haramiyidan" from India. Journal of Vertebrate Paleontology 26(2):488-490</ref> The description of ''[[Cifelliodon]]'' from North America confirmed that ''Hahnodon'' — and by extension, Hahnodontidae — belong to Haramiyida.<ref>Adam K. Huttenlocker; David M. Grossnickle; James I. Kirkland; Julia A. Schultz; Zhe-Xi Luo (2018). "Late-surviving stem mammal links the lowermost Cretaceous of North America and Gondwana". Nature. in press. doi:10.1038/s41586-018-0126-y.</ref>

== References ==
{{Reflist}}

=== Bibliography ===
* Sigogneau-Russell (1991), "First evidence of [[Multituberculata]] (Mammalia) in the Mesozoic of Africa". Neues Jahrb Geol Paläontol, Monatshefte, p.&nbsp;119-125.
* Kielan-Jaworowska Z & Hurum JH (2001), "Phylogeny and Systematics of multituberculate mammals". ''Paleontology'' '''44''', p.&nbsp;389-429.
* Much of this information has been derived from [https://web.archive.org/web/20110514101729/http://home.arcor.de/ktdykes/plagiau.htm] MESOZOIC MAMMALS: Basal Multituberculata, an Internet directory.

{{Cynodontia|M.}}
{{Taxonbar|from1=Q18578265|from2=Q944805}}

[[Category:Haramiyida]]
[[Category:Berriasian life]]
[[Category:Early Cretaceous synapsids of Africa]]
[[Category:Cretaceous Morocco]]
[[Category:Fossils of Morocco]]
[[Category:Fossil taxa described in 1991]]
[[Category:Taxa named by Denise Sigogneau-Russell]]