It is thus seen as the precursor of all synapsids (which include mammals).

Faunal remains are considered to include both fish, birds, and mammals.

Its diet may include small mammals, lizards, birds, and other snakes.

It was one of the earliest and most basal synapsids (the group which include mammals).

Their diet is varied and includes many different birds and mammals.

They dive to capture prey that can include birds and mammals in the air, canopy, or forest floor.

The group includes modern mammals as well as their extinct ancestors and close relatives.

South America was isolated until a few million years ago, with a fauna that included marsupials and other distinctive mammals.

Prey specimens can often include fish, birds and mammals.

It includes anomodonts and the more derived theriodonts, which include mammals.