Which Group Was Ancestral To The First Tetrap...
Subclass Sarcopterygii
-Dipnoi: Lungfish
-C...
Why Did Fish Evolve To Live On Land?
In Devonian Age,freshwater Pools Evaporated.&...
Which Group Is Ancestral To Amphibians?
Subclass Labyrinthodonts (these Evolved From ...
Humerus ANSP 23150
This Is The Humerus Of An Early Tetrapod.
Ha...