The Paleozoic.

Slides:



Advertisements
Similar presentations
Chapter 13 Earth’s History Who is Stan Hatfield and Ken Pinzke.
Advertisements

Organized into divisions based on major changes
3/19/12 - Bellringer What associations are there when…
The History of Life on Earth As We Know It. The History of Earth Earth is ~ 4.5 billion years old Earth’s history is divided into four eons –Hadean Eon:
Earth History The Paleozoic Era. Paleozoic Time ( Million Years Ago) n Bracketed by the two most important biological events in Earth’s history:
Life & Evolution Claire Morgan Knowledge Exchange
GEOLOGIC TIME SCALE. PRECAMBRIAN ERA  5,000 – 544 MYA.  The beginnings of life, approximately 1,200 MYA.  Single and multiple celled organisms- lived.
Geologic Timescale.
La nuova biologia.blu Le cellule e i viventi David Sadava, David M. Hillis, H. Craig Heller, May R. Berenbaum.
Paleozoic Era Life starts in the seas and moves onto land
460 mya - Eurypterids Appear 450 mya – Chondrichthyes 444 mya – Mass extinction.
PALEOZOIC ERA (542 Mya Mya) Andrea Villalba, Fabiola Ferrabone, Alfredo de Obaldia, Nicole Cortez.
PALEOZOIC ERA Age of sea-life. CAMBRIAN 542 mya Gondwanaland- mainly in S. Hemisphere “waterworld”
Geologic History of the Earth Ch 13 April 14, 2010.
Tuesday November 27, 2012 (The Phanerozoic Eon: The Paleozoic Era - Life Explodes)
READING THE ROCK RECORD. relative time: events are in sequence, but no actual dates absolute time: identifies actual date of event.
Paleozoic Era.
Earth Science 13.2B Paleozoic Era : Life explodes
Earth’s History & Geologic Time Notes
THE PALEOZOIC ERA By: Andrés Fajardo, Mauricio Buendía, Álvaro Vivas, and Juanita González.
Geologic Time Scale Chapter 17. Formation of Earth 4.6 billion years old Took 100 million years to form.
Chapter 13 Section 2 Paleozoic Era: Life Explodes
This period is about 5 times as long as the Paleozoic and Mesozoic combined, a very long time. Less is known about it than the younger time periods. The.
Geologic Time Scale Remnants of Precambrian Rocks.
Earth's Timeline.
Early Earth Chapter 15. Earth Forms Scientists hypothesize that Earth formed about 4.6 billion years ago. They also believe that Earth started as a ball.
Section 6 – Eras of Earth’s History
Life and Geologic Time  Majority of life in the history of Earth, 4.6 billion years, is confined to the past 600 million years.  This life as outline.
Paleozoic Era By: Mark Aguayo. 6 Time Periods Cambrian Cambrian Ordovician Ordovician Silurian Silurian Devonian Devonian Carboniferous Carboniferous.
Paleozoic Era 570,000,000 yrs ago to 225,000,000 yrs ago Life starts in the seas and moves onto land Six periods: Cambrian Ordovician Silurian Devonian.
Precambrian Times Occurred from 4.6 BYA to 542 MYA The period of Earth history known as the “Precambrian Times” is broken up into three eons, which are.
6/23/2016AF Carpinelli 1 The Paleozoic World Life Takes Hold…
Wednesday October 27, 2010 (The Phanerozoic Eon).
Precambrian Time and the Paleozoic Era
Geologic Time Scale. Imagine putting everything that has happened on Earth into a one hour time frame!
Precambrian Times Occurred from 4.6 BYA to 542 MYA The period of Earth history known as the “Precambrian Times” is broken up into three eons, which are.
(7th) Chapter 8-5 Cornell Notes
Tectonics from the Cambrian into the Future
EARTH’S HISTORY PREPARED BY: SITCHON, GLORIA G. TANHUECO, MICHAELA C.
PALEOZOIC ERA KNOWN AS THE AGE OF FISH OR TRILOBITES.
Geologic Time.
Geologic Time Unit 8.5.
Section 2: Precambrian Time and the Paleozoic Era
The Fossil Record.
Environmental Science
Paleozoic Era 540,000,000 yrs ago to 250,000,000 yrs ago
Paleozoic Era Life starts in the seas and moves onto land
Geological timeline events
Geologic Time Review Game
Materials: Pencil Notebook Notes highlighter Bell work
Section 2: Precambrian Time and the Paleozoic Era
Cambrian period, ~525mya. Gondwana (southern continent) beginning to form.
Section 2: Precambrian Time and the Paleozoic Era
GEOLOGIC TIME SCALE. GEOLOGIC TIME SCALE The GEOLOGIC TIME SCALE is a record of the history of the Earth, based major geologic & biologic events.
Falcon Focus 1. A cowboy rides into town on Friday.
A Quick Look at the History of Life on Earth Part 2
Geologic Time.
What is Mass Extinction?
A Trip Through Geologic Time
Dominant life forms of the past: some very broad generalizations Precambrian: prokaryotes Cambrian-Ordovician: marine invertebrates, algae Silurian-Devonian:
Copyright Pearson Prentice Hall
And changes in organisms
Section 2: Precambrian Time and the Paleozoic Era
Geological Time Scale.
Geologic Time Ch. 30.
CHAPTER 12 LIFE OF THE PALEOZOIC.
LECTURE 4: PALEOZOIC ERA Cambrian/Ordovician Periods
The Paleozoic Era.
Fossils Lecture 1.
Evolution of Multi-cellular Life
Presentation transcript:

The Paleozoic

Cambrian Period 541-485 MYA Named by Adam Sedgewick as a Latinized form of Welsh name for Wales (Cymru). Period begins with the breakup of a supercontinent called Pannotia, centered on the south pole Increase in the number of animals with hard exoskeletons. It likely began as a way to sequester Ca, but continued with larger body sizes following predation. CO2 (~1.4%) O2 (rose to ~14%)

Ordovician Period 485-443 MYA Named after a Celtic Welsh tribe by Charles Lapworth to resolve a fight between Sedgewick and Murchison Transition from Cambrian marked by an extinction event To Silurian by a more significant extinction event (~60% lost) Continents remained southern in distribution

Silurian Period 444-416 MYA Roderick Murchison named this rock sequence after an ancient Celtic tribe of Wales Continental masses equatorial and began to collide Vascular plants appeared on land Jawless fish continued to diversify and jaws appeared

Devonian Period 419-358 MYA Named after Devon, England by Murchison and Sedgewick Vascular plants diversified Vertebrates began to move onto land End of the period marked by a series of extinctions

Carboniferous Period 358-298 MYA Named for coal-bearing strata by William Conybeare and William Phillips Mississippian (358-323 MYA) Pennsylvanian (323-298 MYA) Southern continents (Gondwana) were centered over the south pole generating a southern hemispheric ice age Romer’s Gap (360-345 MYA) caused by mass extinction and drop in oxygen Rise in importance of ray-finned fishes and crinoids Gradual rise in oxygen to 35% as more carbon sequestered Rise in terrestrial arthropods, amphibians and reptiles Toward the end of period (~305 MYA) rainforest collapse –a minor extinction event

Permian Period 298-252 MYA Named for the city of Per’m in the Russian Ural Mountains by Roderick Murchison Assembly of Pangaea with large continental desert Modern terrestrial vertebrate groups became dominant Largest extinction event of the Phanerozoic at end of the Permian –most life extinguished

Causes of the end Permian extinction Volcanism Methane hydrate release Anoxia Hydrogen sulfide release Influence of Pangaea