Anisian Stage

The Anisian Stage lasted from 247 to 242 million years ago.

Gondwana
Dinosaurs

Nyasasaurus (the earliest known dinosaur, predates other early dinosaurs by 16 million years, found in Tanzania)

Archosauriformes

Sarmatosuchus (a basal archosaur from Russia)

Therapsids

Kannemeyeria (found nearly worldwide)

Northern Pangea
Archosauriformes Erythrosuchus (a giant carnivorous erythrosuchid from southern Africa)

Therapsids

Kannemeyeria (found nearly worldwide)

Sauropterygians
Sauropterygians are a diverse group of marine reptiles that existed during the Mesozoic period.

Nothosaurids:

Ceresiosaurus  (a large species from Central Europe)

Dactylosaurus  (Europe)

Keichousaurus  (China)

Placodonts:

The placodonts Cyamodus and Paraplacodus are known from both the Ladinian and Anisian stages.