Paleontology and Paleoecology - PowerPoint PPT Presentation

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Paleontology and Paleoecology

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Paleontology and Paleoecology Principles of Paleoecology Fossils Remains or traces of ancient life Bones, Teeth, Shells, Tracks, Trails Soft tissues rare Utility ... – PowerPoint PPT presentation

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Title: Paleontology and Paleoecology


1
Paleontology and Paleoecology
  • Principles of Paleoecology

2
Fossils
  • Remains or traces of ancient life
  • Bones, Teeth, Shells, Tracks, Trails
  • Soft tissues rare

3
Utility of Fossils
  • History of Life on Earth
  • Evolution appearances of new species
  • Extinction disappearances of species
  • Framework for other events in Earths History
  • Guide in exploring for fossil fuels
  • Important clues to ancient environmental
    conditions

4
Principles of Paleoecology
  • Organisms adapt to their environments
  • Fossils provide clues to organism lifestyle
  • Analogy to living relatives
  • Functional Morphology
  • Association with other fossils similar
    preferences
  • Type of substrate

5
Environmental Factors that Influence Distribution
of Organisms
  • Salinity
  • Oxygenation
  • Temperature
  • Light
  • Nutrients
  • Type
  • Abundance
  • Distribution
  • Agitation/Currents
  • Clarity/Cloudiness of Water
  • Substrate preferences
  • Grain Size firm/soft
  • Composition
  • Mobility/stability

6
Preferences/Lifestyles of Organisms Tell Us About
Environmental Conditions
  • Sessile organisms rely on currents to bring food
  • Motile organisms can search for food in water or
    in/on sediment
  • Distribution of food related to
    agitation/currents
  • Therefore, related to oxygenation also

7
Ways to Feed
  • Producer Plants
  • Primary Consumer Herbivore
  • Secondary Consumer Carnivore
  • Passive/semi-active
  • Filter feeding
  • Active Feeding
  • Swimming, crawling, scavenging, preying
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