Definition that contains triassic period
- pangaea (plate tectonics) a hypothetical continent including all the landmass of the earth prior to the Triassic period when it split into Laurasia and Gondwanaland
- pangea (plate tectonics) a hypothetical continent including all the landmass of the earth prior to the Triassic period when it split into Laurasia and Gondwanaland
- division cynodontia a division of the order Therapsida from the Triassic period comprising small carnivorous tetrapod reptiles often with mammal-like teeth
- genus protoavis extinct primitive birds of the Triassic period; 70 million years before archaeopteryx
- ictodosauria extinct reptiles of the later Triassic period
- cynodontia a division of the order Therapsida from the Triassic period comprising small carnivorous tetrapod reptiles often with mammal-like teeth
- order ictodosauria extinct reptiles of the later Triassic period