Bradysaurus
This large, sluggish stem reptile lived approximately 250 million years
ago. lt grew to about 5 m in length and must have been very clumsy
because of its large body and short, thick legs and feet. lts almost
hand-shaped teeth had small cusps on the edges and the specimens found
are sharp and unworn. It is therefore thought that the animal fed on
soft, floating water plants. |
Lystrosaurus
Lystrosaurus lived about 220 million years ago in Africa, India,
Antarctica, Russia and China, which indicates that the Southern
continents were once part of a super continent named Gondwanaland. The
animal's eyes, and nostrils were placed high up in the head so that it
could protrude only the top of its head above the water like a
hippopotamus. lt was probably herbivorous. |
Euparkeria
This small bipedal reptile was a slender, agile and active animal that
was undoubtedly carnivorous. It lived about 200 million years ago. It
is generally accepted that Euparkeria was ancestral to the dinosaurs
that were to become
the dominant terrestrial animals of later geological periods until this
position was taken over by the mammals. |
Thrinaxodon
Thrinaxodon was a small mongoose-like reptile that lived about 220
million years ago. Many scientists think that it could be ancestral to
the mammals. Some palaeontologists think that the animal could have
been warm-blooded and could have had hair like a mammal. lt was
carnivorous.
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