Evidence of Evolution Part 1

CENOZOIC Mammals & birds & teleost fish dominant

MESOZOIC

Cretaceous Dinosaurs dominant. Small mammals, birds.Jurassic Dinosaurs dominant. First mammals, then first birds.Triassic Mammalian reptiles dominant. First dinosaurs.

PALEOZOIC

Permian Amphibians dominant. First mammal-like reptiles.Pennsylvanian Amphibians dominant. First reptiles.Mississippian Big terrestrial amphibians, fishes.Devonian Fish dominant. First amphibians.Silurian First ray-finned & lobe-finned fish.Ordovician More jawless fishes.Cambrian First jawless fishes

glyptodonts

armadillo

• Paleontologists have found fossils in profusion, with many sequences showing evolutionary change.

• Fossils display changes in the forms of life existing over large spans of time.

Previous slide

Next slide

Back to first slide

View graphic version