What animals lived in the cretaceous?

Dinosaurs! Oh wait. They´re all gone... There were little shrew like mammals around at that time. When the dinosaurs had all gone they went on to become all the mammals living today...

There were sharks then as there are now. Pushed out of the way because of the ocean dwelling reptiles they made a comeback when the reptiles went extinct. There were crocodiles and aligators. They have remained pretty much inchanged trough the eons. I don´t know all the individual species. 75% of all life went extinct at the end of cretaceous so not alot survived into our time. Turtles and frogs survived too however.