Live Science on MSN9 天
Dinosaurs: Facts about the reptiles that roamed Earth more than 66 million years ago
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Nature3 年
Emergence of traits along the mammalian lineage
Mammal lineages are in red; diapsid reptiles, shown as archosaurs (birds, crocodilians and dinosaurs), are in blue; and lepidosaurs (snakes, lizards and relatives) are in green.