Question

Give 4 points on affinities of sphenodon.

Answer 1

Reptilia:

1. They have creeping or crawling mode of locomotion.
2. They are mostly terrestrial and cold-blooded animals
3. They have two pairs of limbs.

Sphenodon:

1. Sphenodon is a primitive type of reptile.
2. They are close resemblance to lizards and also nocturnal animals.
3. They are characterized by presence of an uncinate process and abdominal ribs.
4. The legs are short and pentadactyl.
5. The dorsal side of the body has a series of spines and the body and tail are compressed laterally.