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One significant evolutionary novelty of the ceratosaurs was ________.

A. fused hind limb skeletal elements
B. a short tail
C. serrated, blade-like teeth
D. a lachrymal fenestra

1 Answer

5 votes

Final answer:

The significant evolutionary novelty of the ceratosaurs was serrated, blade-like teeth, which helped them consume prey efficiently.

Step-by-step explanation:

The question is related to the characteristics that distinguished ceratosaurs, a group of large predatory dinosaurs, from other dinosaur clades. Considering the options provided, serrated, blade-like teeth is a significant evolutionary feature that many theropod dinosaurs, including ceratosaurs, developed. This adaptation was crucial for their role as predators, enabling them to efficiently consume prey. Other options like a lachrymal fenestra (option D) do not represent a unique evolutionary novelty of ceratosaurs as such features were more widespread among various dinosaur groups.

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