Fossiomanus
Fossiomanus is an extinct genus of tritylodontid mammaliamorphs from the Early Cretaceous of China. It includes one species, F. sinensis, which is known from a single nearly complete skeleton from the Aptian Jiufotang Formation. Features of its limbs and vertebrae indicate that Fossiomanus was adapted towards a fossorial lifestyle.[1]
| Fossiomanus Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Clade: | Cynodontia |
| Family: | †Tritylodontidae |
| Genus: | †Fossiomanus Mao et al., 2021 |
| Species: | †F. sinensis |
| Binomial name | |
| †Fossiomanus sinensis Mao et al., 2021 | |
Fossiomanus is the geologically youngest known tritylodontid, and as such, the last known non-mammalian synapsid.[1] The holotype of Fossiomanus was found below a tuff layer that has been dated to 118.9 Ma.[2] It is slightly more recent than Montirictus.[1]
References
- Mao, F.; Zhang, C.; Liu, C.; Meng, J. (2021). "Fossoriality and evolutionary development in two Cretaceous mammaliamorphs". Nature. 592 (7855): 577–582. doi:10.1038/s41586-021-03433-2. PMID 33828300. S2CID 233183060.
- Yu, Zhiqiang; Wang, Min; Li, Youjuan; Deng, Chenglong; He, Huaiyu (2021). "New geochronological constraints for the Lower Cretaceous Jiufotang Formation in Jianchang Basin, NE China, and their implications for the late Jehol Biota". Palaeogeography, Palaeoclimatology, Palaeoecology. 583: 110657. doi:10.1016/j.palaeo.2021.110657. ISSN 0031-0182.
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