Diversification of Tetrapods

This set of flashcards covers key terms and concepts related to the diversification of tetrapods, with an emphasis on non-amniote and amniote tetrapods, their characteristics, and evolutionary significance.

A four-limbed vertebrate which may or may not have digits is a __.

Tetrapod

A group of tetrapods that do not possess an amniotic egg is a __.

Non-amniote

A type of tetrapod that possesses an amniotic egg, allowing reproduction on land, is an __.

Amniote

___ are one of the two major lineages of non-amniote Paleozoic tetrapods, primarily amphibian-like.

Batrachomorphs

The other major lineage of non-amniote Paleozoic tetrapods, more closely related to amniotes, are __.

Reptiliomorphs

An __ is an egg that has extra embryonic membranes, including the amnion, chorion, and allantois.

Amniotic egg

The presence of openings in the skulls of amniote tetrapods, classified as anapsid, synapsid, or diapsid, is called __.

Temporal fenestration

A group of amniotes characterized by having one temporal fenestra in the skull is called a __.

Synapsid

A group of amniotes characterized by having two temporal fenestrae in the skull is called a __.

Diapsid

The __ is one of the extraembryonic membranes of amniotes that aids in gas exchange.

Chorion

The __ is the membrane that surrounds and protects the embryo in amniotes.

Amnion

The __ is a membrane involved in waste removal and gas exchange in amniotic eggs.

Allantois