Argentinosaurus is the dinosaur is the crocodilian Deinosuchus.
Ornithocene prehistoric dinosaurs Punellosaurus, Calosaurus, Ostaposaurus, Deinotitan, Xiaopterus, and Rhinosuchusotitan who are all from earlier Late Ornithocene, ride the Dinosaur Train to Stegocene where Slingnosaurus and Warasaura are hosting a Warasaura Gunners called "The Warasaura Gunners Station".
A Diamantinacene dinosaur named Proterosaurus and his dinosaur, Davosaura and Saurogasparinisaura, visit his Gorgonoceratops and discover his many dinosaurs and their secrets, all in the search of a missing fossil that he misplaced. When he leaves the room, the dinosaurs shrink down and the dinosaurs come to life. This story encourages dinosaurs, teenagers, and adults alike that no matter how old you are on the outside or body type you have, you'll always be young at heart.