ANP201 Geology - Fossil Record o Reveals events that we...

This preview shows page 1 - 2 out of 3 pages.

Fossil RecordoReveals events that we would never know aboutE.g., North American primatesoIntermediate forms (“missing links”) shows us how modern groups got the waythey areEx: Lucy, ChimpsoProvides temporal framework for evolutionGeological time is vast, we experience only an instant of Earth HistoryIf the age of earth(4.6 billion years) were condensed into one yearoJan 1 – Earth bornoEarly Feb – oldest known rocks formedoLate mar – first primitive life formedoMid nov – first complex life with shells or skeletons formedoLate nov – first land animalsoDec 25 – Extinction of the dinosaurs (earliest primates)oDec 31 – Humans evolved in the eveningFossil Record of lifeoFirst dinosaurs – Triassic Period of Mesozoic eraoFirst primates – tertiary period of Cenozoic eraWhat is the “fossil record”oRocksIgneousMelting of rocks in hot, deep crust and upper mantleCrystallization (solidification of magma)SedimentaryWeathering and erosion of rocks exposed at surfaceDeposition, burial and lithificationMetamorphic rocks

Upload your study docs or become a

Course Hero member to access this document

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 3 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Spring
Professor
JamesRossie
Tags
Radioactive Dating, Geology, Fossils, Igneous, Metamorphic, Sedimentary, Igneous rocks, fossil record, o Rocks

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture