Euharamiyida
| Euharamiyida Temporal range:
| |
|---|---|
| |
| Life restoration of Shenshou | |
| |
| Skull of Xianshou | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Clade: | Cynodontia |
| Clade: | Mammaliaformes |
| Order: | †Haramiyida |
| Clade: | †Euharamiyida Bi et al. 2014 |
Euharamiyida also known as Eleutherodontida, is
synapsid line.[2][3] It is disputed whether or not they are related to the Haramiyids from the Late Triassic, such as Haramiyavia.[4] The morphology of their teeth indicates that they were herbivorous or omnivorous. Some members of the group are known to be arboreal, including gliding forms similar to modern flying squirrels or colugos.[1][5]
Evolution
The position of euharamyidans is contested. They are either considered crown group mammals as members of
multituberculates, or they are considered to stem-group mammals within the Mammaliaformes.[1][3] The position is often dependent on the relationships of euharamiyids to the Late Triassic haramiyids such as Haramiyavia and Thomasia. In some studies, the two groups are recovered as unrelated.[6][4]
Phylogeny
| Huttenlocker et al. 2018[7] | Mao et al. 2022[8] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Taxa
The following taxonomy follows Mao et al. (2022)[8] unless otherwise cited.
- Cryoharamiya
- Maiopatagium
- Millosodon[7]
- Sharypovoia
- Sineleutherus
- Woodeatonia
- ?Allostaffia
- ?Hahnodontidae Sigogneau-Russell, 1991[7]
- ?Megaconus[7]
- ?Gondwanatheria[7][9]
- Arboroharamiyidae Zheng et al., 2013
- Kermackodontidae Butler and Hooker, 2005 (="Eleutherodontidae" Kermack et al., 1998) (considered by other studies to be multituberculates)
- Shenshouidae Mao and Meng, 2019
References
- ^ S2CID 4471574.
- ^ Chang, Kenneth (16 November 2015). "Jawbone in Rock May Clear Up a Mammal Family Mystery". The New York Times. Retrieved 17 November 2015.
- ^ PMID 26630008.
- ^ S2CID 230968231.
- S2CID 4466953.
- ^ X.-Z. Luo, Q.-J. Meng, D. M. Grossnickle, D. Lui, A. I. Neander, Y.-G. Zhang, and Q. Ji. 2017. New evidence for mammaliaform ear evolution and feeding adaptation in a Jurassic ecosystem. Nature 548:326-329.
- ^ S2CID 43921185.
- ^ S2CID 251708147.
- PMID 32517606.