Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: ?Mammalia
Infraclassis: ?†Allotheria
Ordo: †Haramiyida
Familia: †Hahnodontidae
Genus: †Cifelliodon – †Denisodon – †Hahnodon
Name
Hahnodontidae Sigogneau-Russell, 1991
References
Primary references
Sigogneau-Russell, D. 1991. First evidence of Multituberculata (Mammalia) in the Mesozoic of Africa. Neues Jahrbuch für Geologie und Paläontologie Monatshefte 1991(H2): 119–125.
Hahnodontidae is a family of extinct mammaliaforms 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 genera 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.[1][2][3]
Phylogeny
Sigogneau-Russell (1991) and Hahn & Hahn (2003) classified hahnodontids as multituberculates, but the cladistic analysis of Cifelliodon recovered them outside Multituberculata as phylogenetically intermediate between Docodonta and crown Mammalia. The gondwanathere Vintana was also recovered as sister to members of Hahnodontidae.[3]
References
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.
Sigogneau-Russell (1991), "First evidence of Multituberculata (Mammalia) in the Mesozoic of Africa". Neues Jahrb Geol Paläontol, Monatshefte, p. 119-125.
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] MESOZOIC MAMMALS: Basal Multituberculata, an Internet directory.
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