Hahnodon

Hahnodon ("Hahn's tooth") is a genus of extinct mammal 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 haramiyid.[1]

Hahnodon Temporal range: 145–139 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Therapsida
Clade:	Cynodontia
Order:	†Haramiyida
Family:	†Hahnodontidae
Genus:	†Hahnodon Sigogneau-Russell, 1991
Species:	†H. taqueti
Binomial name
†Hahnodon taqueti Sigogneau-Russell, 1991

Fossils and distribution

Hahnodon taqueti is based on a single lower molar found in Lower Cretaceous strata in Morocco.

Classification

Denise Sigogneau-Russell (1991) classified Hahnodon as a member of Multituberculata, but Ananthataman et al. (2006) considered to be possibly related to members of Haramiyidia.[2] The description of Cifelliodon from North America confirmed that Hahnodon — and by extension, Hahnodontidae — belong to Haramiyidia.[3]

References

1. https://www.natureasia.com/en/research/highlight/12522/
2. 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
3. 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.

Bibliography

• 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 MESOZOIC MAMMALS: Basal Multituberculata, an Internet directory.