Question

List 2 changes to the skull that accompanied the move from water to land during the Devonian Period seen in the fossil sequence of tetrapods

Then list two changes to the axial or appendicular skeleton that occurred in the Carboniferous as the synapsid reptiles developed from amphibians

Answer 1

changes to the skull that accompanied the move from water to land during the Devonian Period seen in the fossil sequence of tetrapods

1) Tall and narrow skulls with eyes facing sideways and forwards

2) Evolution of vertebral columns that increased neck mobility.

3) They can see up and down.

4) It allowed neck rotation for moving the head left and right.

changes to the axial or appendicular skeleton that occurred in the Carboniferous as the synapsid reptiles developed from amphibians

1) vertebrae is ossified

2)cervical vertebrae is recognizable because the neck is differentiated from the body.