Geology Reference
In-Depth Information
Edaphosaurus
Dimetrodon
◗
Figure 21.29
Pelycosaurs Most pelycosaurs or fi nback reptiles have a characteristic sail on their
back. One hypothesis explains the sail as a thermoregulatory device. Other hypotheses are that it was
a type of sexual display or a device to make the reptile look more intimidating. Shown here are the
carnivore
Dimetrodon
and the herbivore
Edaphosaurus
.
Moschops
Dicynodon
◗
Figure 21.30
Therapsids A Late Permian scene in southern Africa showing various therapsids,
including
Dicynodon
and
Moschops
. Many paleontologists think that therapsids were endothermic and
may have had a covering of fur, as shown here.
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