What animals lived during the time of dinosaurs?

Most types of animals (though not the actual species) we see today lived during the time of the dinosaurs (about 230 - 65 million years ago). Dinosaurs were the prominent land animals. Mammals have been on earth about as long as dinosaurs, since the mid- to late Triassic. Birds, descendants of dinosaurs, have been around since the late Jurassic. Other familiar reptiles, such as lizards, snakes, turtles, and crocodiles were also present during the time of the dinosaurs (snakes being the latest to show up in the fossil record, during the late Jurassic - early Cretaceous). And, of course, there were plentiful arthropods (insects, Spiders, millipedes, etc.), fish, shellfish, corals, etc. Other creatures no longer on earth that were living during the time of the dinosaurs include many different forms of marine reptiles, such as plesiOSaurs, mosasaurs, and ichthyosaurs, and the flying reptiles, pterosaurs. All of these types of animals died out when dinosaurs went extinct at the end of the Cretaceous.