Aversor Explained

Aversor is an extinct genus of embolomere which lived in the Early Permian of Russia. It contains a single species, Aversor dmitrievi, which is based on skull and jaw fragments from the Intinskaya Svita (Inta Formation) near Pechora.^[1] It may have been the youngest known eogyrinid, and was the youngest known embolomere until the discovery of Seroherpeton, a Late Permian embolomere described in 2020. Aversor and Seroherpeton both lived at higher latitudes than older embolomeres, suggesting that the group abandoned arid equatorial areas prior to their final demise.^[2]

Notes and References

1. Book: Novikov. Igor V.. The Age of Dinosaurs in Russia and Mongolia. Shishkin. Mikhail A.. Golubev. Valerii K.. Cambridge University Press. 2000. 9780521545822. Benton, M.J.. Cambridge. 60–70. Permian and Triassic anthracosaurs from eastern Europe. Shishkin, M.A.. Unwin, D.M.. Kurochkin, E.N..
2. Chen. Jianye. Liu. Jun. 2020-12-01. The youngest occurrence of embolomeres (Tetrapoda: Anthracosauria) from the Sunjiagou Formation (Lopingian, Permian) of North China. Fossil Record. English. 23. 2. 205–213. 10.5194/fr-23-205-2020. 2193-0066. free.