What do prehistoric frogs (around 250 million years ago) possess that modern frogs generally lack?

Answer

A full set of true teeth, including thousands of small, backward-hooked teeth covering the mouth's roof.

Fossil evidence shows that prehistoric frogs were formidable predators equipped with a much more extensive array of true teeth covering most of the mouth.

What do prehistoric frogs (around 250 million years ago) possess that modern frogs generally lack?
animalamphibiantoothjawBullfrog