Science, asked by adeshbajpai, 8 months ago

Write the changes that occurred in crocodile after dinosauric evolution ​

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Answered by Anonymous
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Along with pterosaurs and dinosaurs, crocodiles were an offshoot of the archosaurs, the "ruling lizards" of the early to middle Triassic period; needless to say, the earliest dinosaurs and the earliest crocodiles resembled one another a lot more than either resembled the first pterosaurs, which also evolved. Like all reptiles, crocodiles are diapsids—i.e., they have two openings on each side of the skull. Crocodiles also show the most important characteristics of the group that includes the dinosaurs (subclass Archosauria). The skull exhibits distinctly developed upper and lower temporal fenestrae (that is, openings behind the eye sockets); the teeth arise from sockets, and the roof of the skull lacks an opening for the parietal organ—a median, dorsal outgrowth of the brain (see tuatara: Form and function). Within the Archosauria, the crocodiles are a separate order, since they have developed a secondary bony palate, which encloses the nasal passage from the exterior nasal openings to the choanae (internal nostrils).

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