extinct reptile mesozoic?

Answer 1

I'm going to have to guess you are asking a quesition about naming them?

Reptiles of the mesozoic era: cold-blooded vertebrate animals, with or without legs. Their skin is covered with scales and they are usually oviparous.
Brontosaurus: huge herbivorous dinosaur of the mesozoic era.
Stegosaurus: large, heavy herbivorous dinosaur of the mesozoic era, with a body covered with protective armour.
Pterodactyl: large flying dinosaur of the mesozoic era.
Tyrannosaurus: large, tall carnivorous dinosaur of the mesozoic era.

Answer 2

There are reptiles that lived in the mesozoic. I think they had a special name of some sort. It will come to me.

Here is a wiki link about an extinct dinosaur from before the mesozoic.

http://en.wikipedia.org/wiki/Hylonomus

Answer 3

I presume you need the answer for this Sundays Express £1000 crossword, I won't tell you cos' I want to win!