KGS Home >
Earth Science Education
Earth History
- Overviews, timelines, summaries of earth history
- Background information on geologic age dating
- Background information on plate tectonics and continent positions through time
- Background information on how fossils form
- Lesson plans
- Precambrian Time and origin of life on Earth
- Cambrian Period--Explosion of life and Burgess Shale
- Cambrian Period—Diversification of chordates and arthropods
- Cambrian Period--Oldest vertebrates from Chengjiang, conodonts
- Early Paleozoic rise of fish
- Late Ordovician mass extinction
- Ordovician?/Silurian Period--Oldest vascular land plants
- Silurian/Devonian Period--Oldest land animals (millipedes, wingless insects, and other arthropods)
- Devonian Period--Lobefins, lungfish, amphibians, and tetrapod evolution
- Late Devonian mass extinction
- Carboniferous Period (Mississippian and Pennsylvanian)--Rise of the reptiles
- Permian Period--The rise of mammal-like reptiles
- End of Permian Extinction--The largest extinction of all time
- Triassic Period--Therapsids, cynodonts, and the first mammals
- Triassic Period--Archosaurs and thecodonts
- Triassic Period--Dinosaur origins and oldest dinosaurs
- Triassic Period--Coelophysis, and early dinosaurs
- End-Triassic extinction--Opening the door for dinosaurs
- Jurassic Period--Dinosaurs of the Morrison Formation
- Jurassic Period--Archaeopteryx, the first bird
- Jurassic/Cretaceous--The largest land animals of all time
- Jurassic/Cretaceous--Ichthyosaursand other marine reptiles
- Jurassic/Cretaceous--Pteradactyls, the flying reptiles
- Jurassic/Cretaceous--Are birds really dinosaurs?
- Jurassic/Cretaceous--Cold- vs. hot-blooded dinosaurs
- Mesozoic Era--Dinosaurs
- Mesozoic Era--Dinosaur extinction
- Mesozoic Era-Dinosaur ichnofossils—Tracks
- Mesozoic Era-Dinosaur ichnofossils—Unusual preservation and bite marks
- Mesozoic Era-Dinosaur Ichnofossils—Coprolites (dung) and Gastroliths (stomach stones)
- Mesozoic/Cenozoic Era--Bugs and more in amber
- Cenozoic Era--Adaptive radiation and "Age of Mammals"
- Paleogene (Tertiary) Period–Eocene Life
- Paleogene (Tertiary) Period-Eocene global warming
- Paleogene (Tertiary) Period–Oligocene Life
- Neogene (Tertiary) Period–Miocene and Pliocene Life
- Cenozoic Era–Mammal evolution examples
- Cenozoic Era–Hominid evolution
- Quaternary Period--Pleistocene "Ice Ages"
- Quaternary Period--Pleistocene life
- Quaternary Period--Pleistocene (6th) mass extinction?
Also, see the following for more information on:
