Fossils From the Phanerozoic Eon By Nikki Prior

Fossils From the Phanerozoic Eon By: Nikki Prior Abby Budin Amanda Miller Carrie Armstrong

Eon - Era - Period l Phanerozoic l Paleozoic l l Permian Period Carboniferous Period l l l l Pennsylvanian Period Mississippian Period Devonian Period Silurian Period Ordovician Period Cambrian Period Mesozoic l l l Cretaceous Period Jurassic Period Triassic Period Cenozoic l l Quaternary Period Tertiary Period Proterozoic l l Archaean l l Precambrian Hadean l Precambrian

Phanerozoic Eon l l 543 Million Years Ago- Present “Time of Evident Life” Hard tough shells and skeletons Four changes occurred which improved fossil record: l l l The number of species with shells and skeletons increased. The total number of individual organisms preserved as fossils increased. The total number of species preserved as fossils increased. The average sizes of individual organisms increased. 3 Subdivisions l l l Paleozoic Mesozoic Cenozoic

Paleozoic Era l “Age of Invertebrates” l “Age of Fishes” l “Age of Amphibians” l 543 – 248 million years ago l Can you name some invertebrates or amphibians?

Mesozoic Era l 248 -65 Million Years Ago l “Age of Reptiles” l Dinosaurs l Can you name some reptiles?

Cenozoic Era l 65 Million Years Ago- Today l “Age of Mammals” l Can you name some mammals?

Summary l Paleozoic l “Age of Invertebrate, Fishes, and Amphibians” l Mesozoic l “Age of Reptiles” l Cenozoic l “Age of Mammals”