Temporal range: Early Permian, 279.5–272.5 Ma
Trematops milleri Williston, 1909
Acheloma (also known as Trematops milleri) is an extinct genus of temnospondyl that lived during the Early Permian. The type species is A. cumminsi. Trematops milleri has been synonymized with Acheloma. Like other trematopids, Acheloma was a large terrestrial carnivore, as shown both by its morphology and bone microanatomy. One species, A. dunni, may have been the top predator of the diverse Richards Spur assemblage in Oklahoma. The following cladogram shows the phylogenetic position of Acheloma, from Polley & Reisz, 2011.
- "The Paleobiology Database". Retrieved 6 January 2010.
- Dilkes, David William; Robert Reisz (December 30, 1987), "Trematops milleri identified as a junior synonym of Acheloma cumminsi with a revision of the genus", American Museum Novitates, American Museum of Natural History (2902)
- Quémeneur, S.; de Buffrénil, V.; Laurin, M. (2013). "Microanatomy of the amniote femur and inference of lifestyle in limbed vertebrates". Biological Journal of the Linnean Society. 109 (3): 644–655. doi:10.1111/bij.12066.
- Polley, B.P.; and Reisz, R.R. (2011). "A new Lower Permian trematopid (Temnospondyli: Dissorophoidea) from Richards Spur, Oklahoma". Zoological Journal of the Linnean Society. 161 (4): 789–815. doi:10.1111/j.1096-3642.2010.00668.x.
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