geologic time record

25 terms by mcgho 

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even

ediacaran

camals

cambrian

ordinarily

ordovician

sit

siluvian

down

devonian

carefully

carboniferous

perhaps

permian

their

triassic

joints

jurassic

creak

cretaceous

please

palogene

niggah

neogene

ediacaran 3500

oldest fossil cells (prokaryotes)

ediacaran 2700

concentration of atmospheric oxygen increases

ediacaran 2100

oldest fossils of eukaryotic cells

cambrian

explosion increases diversity of animal phyla

ordovician

colonization of land by fungi, plants and animals

carboniferous

origin of reptiles

permian

extinction of most marine and terrestrial organisms

triassic

origin of mammals

jurassic

dinosaurs abundant and diverse

cretaceous

many groups of organisms (including dinosaurs) go extincts

paleogene/paleocene

major radiation of mammals, birds and insects

paleogene/oligocene

origin of primates

neogene/pleistocene

ice age, humans appear

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