13 ene 220844445 año aC - Formation of the Supercontinent Pangaea
Descripción:
First true mammals appeared: Eozostrodon, Theriodontia, tiny and nocturnal. Earliest-know turtle, Proganochelys. Turtles, frogs, salamanders, lizards (sphenodonts & snakes), pterosaurs appeared. Insects undergo complete metamorphosis. In the seas, ichthyosaurs, marine reptiles appeared. Seed ferns dominate the Triassic terrain. Laurasia was dominated by conifers, and Gondwanaland was dominated by Dicroidium
Añadido al timeline:
Mesozoic Era
STEM-2A Biology
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