Euharamiyida
Euharamiyids are clade of early mammals or mammal-like cynodonts from the Middle Jurassic to Early Cretaceous of Eurasia and possibly North America. The group is sometimes considered a sister group to Multituberculata,[1] or part of an earlier divergence within the synapsid line.[2][3]
| Euharamiyida Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Clade: | Cynodontia |
| Clade: | Mammaliaformes |
| Order: | †Haramiyida |
| Clade: | †Euharamiyida Bi, Wang, Guan, Sheng, & Meng, 2014 |
Evolution
The position of euharamyidans is contested. They are either considered crown group mammals as members of Allotheria, related to 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.[4]
Taxa
| Euharamiyida | |||||||||||||||||||||||||||||||||
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| Cladogram of Euharamiyida |
- Millsodon Butler and Hooker, 2005
- Eleutherodontidae Kermack et al., 1998
- Eleutherodon Kermack et al., 1998
- Maiopatagium Luo et al., 2017
- Megaconus Zhou et al., 2013
- Sineleutherus Martin, Averianov & Pfretzschner, 2010
- Vilevolodon Luo et al., 2017[4]
- Xianshou Wang, Meng, Bi, Guan and Sheng, 2014
- Arboroharamiyidae Zheng et al., 2013
- Arboroharamiya Zheng et al., 2013
- Shenshouidae Mao and Meng, 2019
- Qishou Mao and Meng, 2019
- Shenshou Bi, Wang, Guan, Sheng and Meng, 2014
- Sharypovoia Averianov et al., 2019
References
- Bi, Shundong; Wang, Yuanqing; Sheng, Xia; Meng, Jin (10 September 2014). "Three new Jurassic euharamiyidan species reinforce early divergence of mammals". Nature. Nature Publishing Group. 514 (7524): 579–584. doi:10.1038/nature13718. PMID 25209669. 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.
- Luo, Zhe-Xi; Gates, Stephen M.; Jenkins Jr., Farish A.; Amaral, William W.; Shubin, Neil H. (16 November 2015). "Mandibular and dental characteristics of Late Triassic mammaliaform Haramiyavia and their ramifications for basal mammal evolution". PNAS. 112 (51): E7101–E7109. doi:10.1073/pnas.1519387112. PMC 4697399. PMID 26630008.
- 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.
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