'Burgess shale' diaporamas de présentation

Comparing Invertebrates

Comparing Invertebrates. The spotted cleaner shrimp lives among, and cleans, the tentacles of this anemone The anemone protects the shrimp from predators. Comparing Invertebrates. Invertebrate Evolution. Until recently, the origins of invertebrates were shrouded in mystery

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ZOO4 HONOURS

ARTHROPOD ORIGINS AND RELATIONSHIPS. ZOO4 HONOURS. Mark Blaxter 2007-2008 www.nematodes.org. Arthropod origins and relationships. Three main questions: Is Arthropoda a monophyletic group? Which non-arthropod groups are most closely related to Arthropoda?

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Paleozoic Life

Paleozoic Life. Life forms in the Paleozoic. The paleozoic begins with the appearance of fossils of marine animals. For the first time, ocean animals that have easily fossilized hard parts.

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Chapter 32: Introduction to Animal Evolution Chapter 33: Invertebrates

Overview of Animal Phylogeny part 1: invertebrates. Chapter 32: Introduction to Animal Evolution Chapter 33: Invertebrates. Invertebrates: orientation to topics. Figure 33.1 Review of animal phylogeny. Table 25-1a. The Situation in the Late Precambrian.

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EARLY PALEOZOIC LIFE

EARLY PALEOZOIC LIFE. Advent of the Metazoans. Multicellular organisms begin to become common in fossil record of Neoproterozoic Fossils found on every continent Fossils are impressions of soft bodied organisms Metazoans are multicellular organisms the possess

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BYA

CELL-CELL COMMUNICATION. EVOLUTION OF SEX (Meiosis). ORIGIN OF THE NUCLEUS AND ORGANELLES. ORIGIN OF LIFE. Ancestral humans. 0.002. Diversification of mammals. Invasion of the land. 0.6. Diversification of animals. 1.0. Origin of the major eukaryotic groups. 1.9.

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Objectives: Understand the physical characteristics and fossil evidence of the Burgess shale.

Cambrian Explosion. Objectives: Understand the physical characteristics and fossil evidence of the Burgess shale. Analyze the major causes of the Cambrian explosion. Apply and interpret Macro evolutionary patters such as Adaptive radiation and punctuated equilibrium. Cambrian Explosion

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BYA

CELL-CELL COMMUNICATION. EVOLUTION OF SEX (Meiosis). ORIGIN OF THE NUCLEUS AND ORGANELLES. ORIGIN OF LIFE. Ancestral humans. 0.002. Diversification of mammals. Invasion of the land. 0.6. Diversification of animals. 1.0. Origin of the major eukaryotic groups. 1.9.

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Canadian Rockies (this is Banff)

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The Early Paleozoic Era

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The Early Paleozoic Fauna: The significance of the Burgess Shale

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Mark A. S. McMenamin Department of Geology and Geography Mount Holyoke College 2010

Cambrian Cannibals: Agnostid Trilobite Ethology and the Earliest Known Case of Arthropod Cannibalism. Mark A. S. McMenamin Department of Geology and Geography Mount Holyoke College 2010. The Puzzling Agnostids.

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History of the Earth

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The Cambrian Explosion

The Cambrian Explosion. The Big Bang of Life on Earth!. Things to know:. What was it? When was it? Why might it have happened? How loud was it? (joke) What is the Burgess Shale?. The geologic time scale. Two views.

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The Cambrian Explosion

The Cambrian Explosion. The Big Bang of Life on Earth!. Things to know:. What was it? When was it? Why might it have happened? How loud was it? (joke) What is the Burgess Shale?. The geologic time scale. Two views. Excellent fossil hunting in Burgess Shale. (Canada).

362 views • 4 slides