Bibron


Chioninia coctei

1940

Photograph of a Bibron's skink from Carlos França's Le Prof. Barbosa du Bocage, 1823-1907: éloge historique (1908) -- Source

One of two species of skink named for the French zoologist Gabriel Bibron, Chioninia coctei inhabited the islets of Branco and Raso in the Cape Verde archipelago. One of the largest skink species, it was unique for having tooth crowns that were labiolingually compressed and multicuspate (ridged by cusps and bumps), and notable for its transparent lower eyelid, a mechanism that possibly allowed it to better spot predators on the ground. Its extinction is thought to have been caused by hunting, the introduction of predatory animals, and its harvesting for skink oil by native residents of the nearby islands. Marooned convicts ate a significant portion of the extant population in 1833. It was last observed in 1940.

Aurochs


Bos primigenius
1627

Illustration of an aurochs from Siegmund von Herberstein's Rervm Moscoviticarvm commentarij Sigismundi (1556) Source

One of two species of skink named for the French zoologist Gabriel Bibron, Chioninia coctei inhabited the islets of Branco and Raso in the Cape Verde archipelago. One of the largest skink species, it was unique for having tooth crowns that were labiolingually compressed and multicuspate (ridged by cusps and bumps), and notable for its transparent lower eyelid, a mechanism that possibly allowed it to better spot predators on the ground. Its extinction is thought to have been caused by hunting, the introduction of predatory animals, and its harvesting for skink oil by native residents of the nearby islands. Marooned convicts ate a significant portion of the extant population in 1833. It was last observed in 1940.