PaleoDB taxon number: 70397
Synonyms: Anisodexis imbricarius Cope 1882 (no. 309178), Clepsydrops gigas Cope 1878 (no. 138119), Dimetrodon gigas Cope 1878 (no. 138120), Luperosaurus gigas Cope 1878 (no. 346265)
Full reference: E. D. Cope. 1877. Descriptions of extinct Vertebrata from the Permian and Triassic formations of the United States. Proceedings of the American Philosophical Society 17(100):182-193
- Eryops megacephalus: AMNH 4189, a skull
- Anisodexis imbricarius: Its type locality is Coffee Creek, 34 (Arroyo Formation), which is in a Kungurian terrestrial claystone/sandstone in the Arroyo Formation of Texas.
- Clepsydrops gigas: not AMNH 4006 (collected in 1879), as erroneously stated in Case (1907), but a specimen the whereabouts of which are unknown, a set of postcrania (pelvis).
Ecology: amphibious carnivore
Average measurements (in mm): skull length 360.0