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Serjik [45]
3 years ago
7

Amniotes are divided into three groups based in their skull morphologies. what are these three groups, and how do their skulls d

iffer? which living amniotes, if any, originated from each of these three groups?
Biology
1 answer:
amm18123 years ago
8 0
Based on skull morphology, amniotes can be divided:
1. Anapsids-It is a group of organisms with skulls that lack openings called temporal fenestrae.Turtles are an example of Anapsids.
2. Diapsids-It is a group of organisms with skulls that have two temporal fenestrae behind the orbit, one superior and one inferior. Examples are crocodilians, birds, tuataras, lizards and snakes.
<span>3. <span>Synapsids-It is a group of organisms that have one temporal fenestra behind the eye. The example is mammals.</span></span>
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