Diapsid skull is found in which of the following groups?
Crocodile, turtle and Seymauria
Sphenodon, crocodile and viper
Natrix, Draco and turtle
Calotes, cobra and Varanosaurus
A
Crocodile, turtle and Seymauria
B
Sphenodon, crocodile and viper
C
Natrix, Draco and turtle
D
Calotes, cobra and Varanosaurus
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Solution
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Diapsids ("two arches") are a group of amniote tetrapods, that developed two holes (temporal fenestra) in each side of their skulls. The diapsids are extremely diverse and include all crocodiles, lizards, snakes, turtles, birds and nonavian dinosaurs. Out of four options, only option D has all the three animals, having diapsid skull.
So, the correct answer is option D.
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