a shark and a snail
dimetrodon and edaphosaurus
dimetrodon was the dominANT SPECIES OF THE permian period
Adam And Eve
Metazoans were abundant during the Vendian Period.
The living organisms that are dominant in a particular ecosystem depends on the ecosystem. In the rainforest for example, plants are the dominant organisms. In the desert, the animals are the dominant organisms.
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dinosaurs
The dominant organisms living at the Cretaceous period or time were first primates and flowering plants. This was the time when the extinction of the dinosaurs took place.
dinosaurs among animals on land and gymnosperms among plants
dinosaurs among animals on land and gymnosperms among plants
Permian-Triassic extinction, 251 MYA (million years ago) in the Paleozoic era.
155.92yrs