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Permian Project

The Permian
by Sol Steiner
Horizontales
The most primitive group of synapsids
An apex predator that lived in the early Permian, sporting a sail on it's back.
The first seed bearing plants
The largest mass extinction in history
Fish with bones instead of vertebrae
The ancestors of all reptiles; Identified by the either two or no openings in their skull.
The last epoch of the Permian
Verticales
Believed to be the ancestors of all mammals; Identified by their one opening behind the eye sockets.
The middle epoch of the Permian
The first epoch of the Permian
The branch of Synapsids that were the most closely linked to mamals