Hahnodontidae is a family of extinct from Early Cretaceous deposits in Morocco and the Western United States. Although originally considered to belong to the extinct clade Multituberculata, recent work indicates that hahnodontids belong to the more primitive clade Haramiyida.
Distribution
The
Genus Hahnodon and
Denisodon occur in the Early Cretaceous of Morocco, while the genus
Cifelliodon is found in the Barremian-age Yellow Cat Member of the Cedar Mountain Formation in Utah.
[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][G. Hahn and R. Hahn. 2003. New multituberculate teeth from the Early Cretaceous of Morocco. Acta Palaeontologica Polonica 48(3):349-356.][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.]
Phylogeny
Sigogneau-Russell (1991) and Hahn & Hahn (2003) classified hahnodontids as
Multituberculata, but the cladistic analysis of
Cifelliodon recovered them outside Multituberculata as phylogenetically intermediate between
Docodonta and crown Mammalia. The
Gondwanatheria Vintana was also recovered as sister to members of Hahnodontidae.
[
]
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Sigogneau-Russell (1991), "First evidence of Multituberculata (Mammalia) in the Mesozoic of Africa". Neues Jahrb Geol Paläontol, Monatshefte, p. 119-125.
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Kielan-Jaworowska Z & Hurum JH (2001), "Phylogeny and Systematics of multituberculate mammals". Paleontology 44, p. 389-429.
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Much of this information has been derived from [1] MESOZOIC MAMMALS: Basal Multituberculata, an Internet directory.
