-
400 Million Years Ago
Starfishes and Horseshoe crabs -
300 Million Years Ago
Coelacanths, Cockroaches, Dragonflies, Lungfishes, Tuataras -
200 Million Years Ago
Ants, First Dinosaurs, Turtles, Crocodiles, Sharks, Skates and Rays -
100 Million Years Ago
Stugeons and Primitive Grebes -
65 Million Years Ago
Opossums and the Last Dinosaurs -
Age of the Reptiles
This is a modern age time where Reptiles are the dominant creatures -
Age of Mammals
Current time period where Mammals are the current most populated.