geologic time record
Order by
25 terms
Terms | Definitions |
|---|---|
 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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