Sentences with phrase «land vertebrates during»
Dunne continued: «We now know that the rainiforest collapse was crucial in paving the way for amniotes, the group which ultimately gave rise to modern mammals, reptiles and birds, to become the dominant group of land vertebrates during the Permian period and beyond.»
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During the Mesozoic Era, when dinosaurs were the dominant vertebrates on land, mammals were mostly small insectivores that were nocturnally or cathemerally active.