-
542 BCE
Paleozoic:Permian
Primitive reptiles -
542 BCE
Paleozoic:Pennsylvanian
Giant insects -
542 BCE
Paleozoic: Mississippian
Brachiopods -
542 BCE
Paleozoic:Devonian
Numerous fish, many plants, first trees, wingless insects -
542 BCE
Paleozoic:Silurian
Sea scorpions, first jawed fish and coral reef -
542 BCE
Paleozoic:Ordovician
Diverse marine life. including vetebrates -
542 BCE
Paleozoic:Cambrian
Invertebrate sea life -
Period: 542 BCE to 257 BCE
Paleozoic Era
-
257 BCE
Mesozoic:Cretaceous
Last dinosaurs were around. -
257 BCE
Mesozoic:Jurassic
Quarry dinosaurs, birds started to evolve. -
257 BCE
Mesozoic:Triassic
First dinosaurs and mammals evolved. -
Period: 66 BCE to
Cenozoic Era
-
Period: 257 to 66
Mesozoic Era
-
Cenozoic:Tertiary
Primitive Horses and people started to evolve
