Eocene
adjective
uk/ˈiː.əʊ.siːn/us/ˈiː.oʊ.siːn/from or referring to theperiodoftimebetween about 56.5 and 35.4 millionyearsago:
Fossils show that until the end of the EoceneperiodalandbridgeconnectedEurasia withNorthAmerica.
rocksof Eoceneage
- Heproposeda newplanofclassificationfor the Eocenemammals.
- Fossil Lake is anancientlakebedleftover from the Eoceneepoch.
- Conflictinginterpretationsderivedfrom differenttypesofdataleaveconsiderableuncertaintyabout early Eocenetemperatures.
- Eocenewhales, forexample, were verysimilartomodernwhales.
Geology - general words
- Anthropocene
- aquifer
- auriferous
- biozone
- Cambrian
- carboniferous
- cementation
- Cretaceous
- hoodoo
- interbed
- Jurassic
- karst
- Mesozoic
- plate tectonics
- pyroclastic
- Quaternary
- sedimentation
- selenologist
- tectonic
- the rock cycle
You can also find related words, phrases, and synonyms in the topics:
Prehistory
Specific periods of time
Eocene
noun[S]
uk/ˈiː.əʊ.siːn/us/ˈiː.oʊ.siːn/the Eocene
aperiodoftimebetween about 56.5 and 35.4 millionyearsago. It is between thePalaeoceneand theOligoceneepochs(=periodsoftime):
During theageknownas the Eocene, theearthexperiencedagreatexpansionofmammalianspecies.
Fossils of sub-tropicalspeciessuch ascrocodilesandturtleshave beenfoundin theCanadianhighArcticdatingfrom the early Eocene, 55 millionyearsago.
See also
Palaeocene
Oligocene
- Geologists areinvestigatingcratersthatdateto the late Eocene, some 34 to 36.5 millionyearsago, such as the PopigaicraterinnorthernSiberia.
- Afeatheredskullfrom the Eocene wasunearthedin Denmark.
- Theswelteringice-freeworldof the Eocenewarnsus of what mighthappenif arunawaygreenhouseeffectsets in.
Geology - general words
- Anthropocene
- aquifer
- auriferous
- biozone
- Cambrian
- carboniferous
- cementation
- Cretaceous
- hoodoo
- interbed
- Jurassic
- karst
- Mesozoic
- plate tectonics
- pyroclastic
- Quaternary
- sedimentation
- selenologist
- tectonic
- the rock cycle
You can also find related words, phrases, and synonyms in the topics:
Prehistory
Specific periods of time