History of life on earth. hadean archaeanproterozoicpaleozoicmesozoiccenozoic Millions of years ago

History of life on earth

010002000300040005000

hadean

archaean

proterozoic

paleozoicm

esozoiccenozoic

Millions of years ago

PrecambrianArchaeanProterozoic

PhaenerozoicPaleozoic

CambrianOrdovicianSilurianDevonianCarboniferousPermian

MesozoicTriassicJurassicCretaceous

CenozoicTertiaryQuaternary (Pleistocene - Recent)

Stromatolites-definitive fossil life 3.5BYA

Precambrian - Archaean

Precambrian - Proterozoic

Prokaryotes + Eukaryotes-trace fossils-Ediacaran fauna

Precambrian - Proterozoic

Ediacaran fauna

Phaenerozoic - Paleozoic - Cambrian

Cambrian explosion

Why did such great fundamentally different body plans evolve in such great profusion in early evolutionary history but hardly at all thereafter?

How and why did so many great changes evolve in such a short period of time?

rapid diversification of higher taxa

Burgess shale

Conodonts-earliest vertebrates-teeth of cellular bone

Phaenerozoic - Paleozoic - Ordovician

-fauna differs remarkably from Cambrian-fish-like vertebrates appear-large nautiloids

Phaenerozoic - Paleozoic - Silurian

Eurypterids - water scorpions

Phaenerozoic - Paleozoic - Silurian

-first gnathostomesAcanthodiansPlacodermsOsteichthyes

Phaenerozoic - Paleozoic - Devonian

-sarcopterygii, actinopterygii-ammonoids

-chelicerates-mandibulates

-ichthyostega

Phaenerozoic - Paleozoic - Carboniferous & Permian

-sharks diversified

-winged insects

-amphibians diversified

reptiles

mammals

-amniotes gave rise to synapsids & diapsids

Phaenerozoic - Mesozoic - Triassic, Jurassic, Cretaceous

coccolithophores

-frogs, lizards, snakes, turtles

archosaurs

Archosaursphytosaurspterosaurscrocodiliansdinosaurs

Dinosaurssaurischians

theropods

sauropods

Dinosaursornithischians

hadrosaurs

ceratopsians

Phaenerozoic - Cenozoic - Tertiary

marsupials radiatedcolubrids radiatedflightless birds appeared

-bats & apes appear

edentates

artiodactyls

perissodactyls

teleosts diversifiedwhales & sealions appeared

Phaenerozoic - Cenozoic - Pleistocene - present

similar fauna to today

Phaenerozoic - Cenozoic - Pleistocene - present

4 major glaciations-more to come

History of life on earth. hadean archaeanproterozoicpaleozoicmesozoiccenozoic Millions of years ago

Documents

No evidence for Hadean continental crust within Earth's oldest …easweb.eas.ualberta.ca/download/file/papers/paper_226.pdf · 2016-09-21 · the Hadean Earth was dominated by maﬁc-composition

Geologic Time MYA? MYA? MYA? MYA stands for Millions of Years Ago Geologic time is measured in millions of years because the time span is so large

· ocene Propalaeotherium Pachynolophus Haplohippus Epihjppus Millions of years ago 01 ocene Miohippus Miocene Sinohippus Megatwppus Hypohippus Parahippus

The Hadean

Hadean Eon & the formation of Earth. The Hadean Eon Basal part of the former Precambrian Era

Major Ice Age Periods Fluctuating cool periods on Earth which lasted for millions of years 2100-2400MM years ago “Huronian” 800-600MM years ago “Snowball

The Hadean-Archaean Environment - Newcastle University

Behold Now Behemoth -Job 40:15 - etvfc.orgetvfc.org/presentations/ppt/behemoth.pdf · • “Dinosaurs lived millions of years ago. The first dinosaurs lived 225 million years ago

Unit 1 : Many Planets, One Earthfuenscience.weebly.com/uploads/1/3/6/...unit_1_many...Earth's history, from about 4.5 to 3.8 billion years ago, is named the Hadean after hades, the

A study of Genesis 1 12 Fill‘em Up 1 millions of years ago

Dinosaurs Before Dark. What is a dinosaur ? Dinosaurs are reptiles that lived millions of years ago

Constraints on Hadean zircon protoliths from oxygen ...isotope.colorado.edu/~mojzsis/2007_Trail_Gcubed.pdf · Constraints on Hadean zircon protoliths from oxygen isotopes, Ti-thermometry,

EraPeriodTime Permian Carboniferous Devonian Silurian Ordovician Cambrian (millions of years ago) EraPeriodTime (millions of years ago) EraPeriodTime (millions

Dinosaurs Dinosaurs are reptiles that lived millions of years ago. Dinosaur means terrible lizard

Behold Now Behemoth -Job 40:15 · • “Dinosaurs lived millions of years ago. The first dinosaurs lived 225 million years ago. The last dinosaurs lived 65 million years ago. Some

Nepal Population Reconstruction to First Hominid 1.5 millions years Ago

Origin of Earth/ Hadean Eon - Salem State Universityw3.salemstate.edu/~bhubeny/GLS201/5.Hadean.pdf · Origin of Earth/ Hadean Eon Brad Hubeny The Precambrian Precambrian Cratons and

Nano- and micro-geochronology in Hadean and Archean ...€¦ · Presidential address SPECIAL COLLECTION: NANOMINERALS AND MINERAL NANOPARTICLES Nano- and micro-geochronology in Hadean

Hadean)mantle)melting)recorded)by)southwest) Greenland ... · Hadean mantle melting recorded by Southwest Greenland Chromitite 186Os signatures: Supplementary Methods 1 Samples Three

The Hadean Crust: Evidence from >4 Ga Zircons