Q3 Week 2 General Biology Flashcards

History of life on Earth is 3.8 billion years ago

Geologic time period that is shorter than Eon, but longer than Period - Era

Cenozoic Era - New Life

Mesozoic Era - Middle Life

Paleozoic Era - Old Life

Eon - longer than era, used to represent major division of geologic time scale

Hadean, Archean, Proterozoic, Phanerozoic - Eons

Paleozoic Era, Mesozoic Era, Cenozoic Era - Three major eras

Paleozoic Era - 541 to 242 Million year ago

Paleozoic Era - Emergence of Marine Life

Paleozoic Era- Evolution of land plants

Paleozoic Era - Emergence of amphibians and reptiles

Mesozoic Era - 252 to 66 Million years ago

Mesozoic Era - Emergence of dinosaurs, birds, and mammals

Cenozoic Era - 66 Million years ago to present day

Cenozoic Era - Emergence of modern mammals

Cenozoic Era - Diversification of flowering plants