More than you! suckerr! :D
To date, about 600, but it is estimated that there were about 1400+ dinosaurs.
There were many kinds of dinosaurs some of them ate flesh depending on their size and the size of the prey and some ate plants.
All of them except birds. (Yes, they're technically theropod dinosaurs. Look it up!)
Actually, there ARE dinosaurs now; birds of all kinds are now classified as dinosaurs. They are actually more numerous than mammals!
"Play" is perhaps too sophisticated an activity for what dinosaurs did, but it's safe to say that different kinds of dinosaurs associated, just as elephants and giraffes and zebras and antelope do today.
All dinosaurs that ate meat because if we (humans) were alive back then the 'bad' dinosaurs would've eaten us all up and ended the human civilisation
Armadillo,turtles,crocs/gators, dinosaurs...
ankylosaurus, triceratops, and Tarbosaurus.
Tyranasaurus Rex and Dinosaurus.
during the dinosaur aged dinosaurs where on every land mass in all kinds of environments desserts forests tundras and plains
Tyrannosaurus RexStegosaurusPachycephalosaurusAnkylosaurusOviraptorDeinonychusBrachiosaurusTriceratopsPteranodon
I don't know but not alligators dinosaurs and monkeys