No. Snakes are in the lepidosaur branch of reptiles while dinosaurs are from the archosaur branch.

You can find them near the blademaster trainers in etherblade, archosaur, and silverpool.

No, the only archosaur (bird, crocodile, dinosaur) to have a urinary bladder is the ostrich.

Thecodonts are not a type of dinosaur. They are archosaur reptiles that had sockets in their jaw for their teeth. Mammals evolved from thecodonts.

An archosaur is a reptile of the taxon Archosauria, including the extinct dinosaurs, plesiosaurs, pterosaurs and ichthyosaurs, as well as modern crocodiles.