The Rock and Fossil Record
... The Geologic Time Scale B. The Paleozoic Era—Old Life The Paleozoic era lasted from about 543 million to 248 million years ago. It is the first era well represented by fossils. Ended with the largest mass extinction in Earth’s history. C. The Mesozoic Era—The Age of Reptiles The Mesozoic era began ...
... The Geologic Time Scale B. The Paleozoic Era—Old Life The Paleozoic era lasted from about 543 million to 248 million years ago. It is the first era well represented by fossils. Ended with the largest mass extinction in Earth’s history. C. The Mesozoic Era—The Age of Reptiles The Mesozoic era began ...
History of Life on Earth
... ● Serial endosymbiosis supposes that mitochondria evolved before plastids through a sequence of endosymbiotic events ● Key evidence supporting an endosymbiotic origin of mitochondria and plastids: -Inner membranes are similar to ...
... ● Serial endosymbiosis supposes that mitochondria evolved before plastids through a sequence of endosymbiotic events ● Key evidence supporting an endosymbiotic origin of mitochondria and plastids: -Inner membranes are similar to ...
Historical Geology
... In this theory a 10Km diameter meteor hit the Earth. Such a meteor has more explosive power than all current nuclear weapons combined, and would punch a hole and lift 10,000 cubic kilometers of dust into the air, darkening the sky for months and causing temperatures to drop from 20 to -10 degrees ce ...
... In this theory a 10Km diameter meteor hit the Earth. Such a meteor has more explosive power than all current nuclear weapons combined, and would punch a hole and lift 10,000 cubic kilometers of dust into the air, darkening the sky for months and causing temperatures to drop from 20 to -10 degrees ce ...
Quaternary Period
... beginning of the Permian period. Toward the end of this period, mass extinctions occur among large groups of corals, bryozoans, arthropods, and other invertebrates. 99% of all life perishes. On land, insects evolve into their modern forms; dragonflies and beetles appear. Amphibians decline in number ...
... beginning of the Permian period. Toward the end of this period, mass extinctions occur among large groups of corals, bryozoans, arthropods, and other invertebrates. 99% of all life perishes. On land, insects evolve into their modern forms; dragonflies and beetles appear. Amphibians decline in number ...
CHICXULUB CRATER - University of Colorado Boulder
... • There was global climatic change; the environment changed from a warm, mild one in the Mesozoic to a cooler, more varied one in the Cenozoic • Many organisms; both marine and terrestrial, vertebrate and invertebrate; went extinct • At or near the K/T boundary, there was iridium, shocked quartz, te ...
... • There was global climatic change; the environment changed from a warm, mild one in the Mesozoic to a cooler, more varied one in the Cenozoic • Many organisms; both marine and terrestrial, vertebrate and invertebrate; went extinct • At or near the K/T boundary, there was iridium, shocked quartz, te ...
First life fish reptiles mammals
... – Cretaceous-Tertiary extinction killed dinosaurs – Triassic-Jurassic extinction (22% of marine families) – Permian-Triassic extinction (95% of all species) ...
... – Cretaceous-Tertiary extinction killed dinosaurs – Triassic-Jurassic extinction (22% of marine families) – Permian-Triassic extinction (95% of all species) ...
Timeline for Core Geology
... 1776 - James Keir suggests that some rocks might have been formed by the crystallisation of molten lava 1779 - Comte de Buffon speculates that the Earth is older than the 6,000 years suggested by the Bible 1809 - William Maclure conducts the first geological survey of the eastern United States 1830 ...
... 1776 - James Keir suggests that some rocks might have been formed by the crystallisation of molten lava 1779 - Comte de Buffon speculates that the Earth is older than the 6,000 years suggested by the Bible 1809 - William Maclure conducts the first geological survey of the eastern United States 1830 ...
Extinction Hypothesis B – Continental Drift
... of their ultimate extinction. Conversely, a sudden "now you see them, now you don't" end to the dinosaurs implies a catastrophic cause. Depending on location and interpretation, the fossil record seems to say different things. According to some scientists, fossil evidence clearly shows a decline in ...
... of their ultimate extinction. Conversely, a sudden "now you see them, now you don't" end to the dinosaurs implies a catastrophic cause. Depending on location and interpretation, the fossil record seems to say different things. According to some scientists, fossil evidence clearly shows a decline in ...
Learning goals for Geologic Time (Chapter 11)
... fossil record… Put these time periods in order by (oldest on the bottom, youngest on top): Archean eon Devonian period Cambrian period Holocene epoch Carboniferous period Mesozoic era Cenozoic era Phanerozoic eon ...
... fossil record… Put these time periods in order by (oldest on the bottom, youngest on top): Archean eon Devonian period Cambrian period Holocene epoch Carboniferous period Mesozoic era Cenozoic era Phanerozoic eon ...
Chapter 20 The Origin and Evolution of Life
... What is one hypothesis of why the dinosaurs died/evolved? Where did it supposedly happen? Cenozoic Era (most recent era) Period Plants (found in Animals (found in Major changes to this period) this period) the plates/environment Quaternary ...
... What is one hypothesis of why the dinosaurs died/evolved? Where did it supposedly happen? Cenozoic Era (most recent era) Period Plants (found in Animals (found in Major changes to this period) this period) the plates/environment Quaternary ...
EarthViewer Questions
... 9. When was the Cambrian Explosion? ___________________________________________________ a. What % of the atmosphere was Oxygen (O2)? ________________________________ b. What % of the atmosphere is O2 today? ______________________ ...
... 9. When was the Cambrian Explosion? ___________________________________________________ a. What % of the atmosphere was Oxygen (O2)? ________________________________ b. What % of the atmosphere is O2 today? ______________________ ...
Name______________________ due date ______ period
... 8. Which era is the oldest?_________________________________________________________ 9. In which era did dinosaurs become extinct? ___________________________________________ 10. In which era did the great extinction on earth take place? _______________________________ 11. Which statement best expla ...
... 8. Which era is the oldest?_________________________________________________________ 9. In which era did dinosaurs become extinct? ___________________________________________ 10. In which era did the great extinction on earth take place? _______________________________ 11. Which statement best expla ...
1. Scientific evidence indicates that the concentration of oxygen in
... d. 12.5 billion Answer C The division of Earth history into geologic periods is based on major geologic and paleontologic events. Once such event was the impact of an asteroid off the coast of Mexico during the end of the Cretaceous Era. What was the result of this event? a. Global cooling that led ...
... d. 12.5 billion Answer C The division of Earth history into geologic periods is based on major geologic and paleontologic events. Once such event was the impact of an asteroid off the coast of Mexico during the end of the Cretaceous Era. What was the result of this event? a. Global cooling that led ...
Geologic Time PowerPoint
... 2.Trilobites and brachiopods are abundant. 3.In the Ordovician period, there are many changes in sea level and tectonics continues to move continents and make mountains. First jawless fish are in the seas. 4.Silurian period- First plants began to grow on land and jawed fish evolve. ...
... 2.Trilobites and brachiopods are abundant. 3.In the Ordovician period, there are many changes in sea level and tectonics continues to move continents and make mountains. First jawless fish are in the seas. 4.Silurian period- First plants began to grow on land and jawed fish evolve. ...
Period Readings
... activity. We know from recent volcano eruptions that large eruptions can cause the temperature to drop all around the world. The Permian Period gets its name from a region of west-central Russia called Perm Oblast. This is where rocks from this time were first found. Even though it was first found i ...
... activity. We know from recent volcano eruptions that large eruptions can cause the temperature to drop all around the world. The Permian Period gets its name from a region of west-central Russia called Perm Oblast. This is where rocks from this time were first found. Even though it was first found i ...
Vocabulary Review - POTOSI SCHOOL DISTRICT
... an event or object is older or younger than other events or objects ...
... an event or object is older or younger than other events or objects ...
Earth: An Ever changing planet
... Cambrian - Permian period:540 MYA – 248 MYA • Cambrian: Starts with a burst of new life forms & all life in ocean • Plants & animals evolved from simple seaweed & sponges • to fish in the oceans & insects, amphibians, and early reptiles on land • 1 Mass extinction in the ocean • Nov. 17 – Dec 6 ...
... Cambrian - Permian period:540 MYA – 248 MYA • Cambrian: Starts with a burst of new life forms & all life in ocean • Plants & animals evolved from simple seaweed & sponges • to fish in the oceans & insects, amphibians, and early reptiles on land • 1 Mass extinction in the ocean • Nov. 17 – Dec 6 ...
fundamentals of earth history
... B. Ancestor of Earliest Mammals = Cynodonts (Reptile); Triassic C. Patterns of Life in the Mesozoic 1. Triassic - seasonal climates; deposit feeders dominate 2. Jurassic & Early Cretaceous - more stable climates; more suspension feeders 3. Middle Cretaceous - most stable climates; diverse suspension ...
... B. Ancestor of Earliest Mammals = Cynodonts (Reptile); Triassic C. Patterns of Life in the Mesozoic 1. Triassic - seasonal climates; deposit feeders dominate 2. Jurassic & Early Cretaceous - more stable climates; more suspension feeders 3. Middle Cretaceous - most stable climates; diverse suspension ...
Earths History - Mrs. Meadows Science
... Eras are divided into smaller parts called periods. Periods are then divided into even smaller parts called epochs. ...
... Eras are divided into smaller parts called periods. Periods are then divided into even smaller parts called epochs. ...
Ch. 14-Life History Lecture #1
... A. Earth’s formation B. Prokaryotes 1. Cynobacteria-like 2. Stromatolites C. 1.8 BYA eukaryotes evolve D. 87% of Earth’s history 1.(January-October) ...
... A. Earth’s formation B. Prokaryotes 1. Cynobacteria-like 2. Stromatolites C. 1.8 BYA eukaryotes evolve D. 87% of Earth’s history 1.(January-October) ...
Part 2 - Mahopac Voyagers!
... A) appeared during the Cambrian Period B) Late Cretaceous Period B) became index fossils C) Early Jurassic Period C) have become extinct D) Early Proterozoic Era D) lived on land ____21. Which event occurred at the start of the Mesozoic Era? ____17. From the study of fossils, what can be inferred ab ...
... A) appeared during the Cambrian Period B) Late Cretaceous Period B) became index fossils C) Early Jurassic Period C) have become extinct D) Early Proterozoic Era D) lived on land ____21. Which event occurred at the start of the Mesozoic Era? ____17. From the study of fossils, what can be inferred ab ...
13.3 Mesozoic Era: Age of Reptiles
... appeared. Several important new types of organisms evolved during the Triassic. For example, the first dinosaurs were among the many types of reptiles that evolved. ...
... appeared. Several important new types of organisms evolved during the Triassic. For example, the first dinosaurs were among the many types of reptiles that evolved. ...
Earth: An Ever changing planet
... Eons – Millions and Billions of years • Haden: Earth before life evolved 4.6 to 3.5 Billion years ago (13% of Earth’s history) • Achaean: Earth with only bacteria like cells 3.5 to 2.5 Billion years ago (28% of Earth’s history) • Proterozoic: Multicellular life forms 2.5 BYA to 540 MYA (48% of Eart ...
... Eons – Millions and Billions of years • Haden: Earth before life evolved 4.6 to 3.5 Billion years ago (13% of Earth’s history) • Achaean: Earth with only bacteria like cells 3.5 to 2.5 Billion years ago (28% of Earth’s history) • Proterozoic: Multicellular life forms 2.5 BYA to 540 MYA (48% of Eart ...
devonian presentation
... There are two theories as to the domino effect of Devonian Extinctions… Both based on the idea that expanding erogenous plants decreased the amount of Carbon Dioxide in the atmosphere, leading to a cooling planet, and eventually, glaciation of the Southern Pole. ...
... There are two theories as to the domino effect of Devonian Extinctions… Both based on the idea that expanding erogenous plants decreased the amount of Carbon Dioxide in the atmosphere, leading to a cooling planet, and eventually, glaciation of the Southern Pole. ...