What is biography in literature

Date Event Ma Shortly after the appearance of the first amniotes, two branches split off. One branch is the Sauropsida, from which come the reptiles, including birds.

Autobiography

The other branch is Synapsida, from which come modern mammals. Both had temporal fenestrae, a pair of holes in their skulls behind the eyes, which were used to increase the space for jaw muscles. Synapsids had one opening on each side, while diapsids (a branch of Sauropsida) had two.

An early, inefficient version of diaphragm may have evolved in synapsids.

The earliest synapsids, or "proto-mammals," are the pelycosaurs.

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The pelycosaurs were the first animals to have temporal fenestrae. Pelycosaurs were not therapsids but their ancestors. The therapsids were, in turn, the ancestors of mammals.

The therapsids had temporal fenestrae larger and more mammal-like than pelycosaurs, their teeth showed more serial differentiation, their gait was semi-erect and later forms had evolved