Paleontology, Homology, and Evolution

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Paleontology, Homology, and Evolution. May 22, 2013. Paleontology, Homology, and Evolution. Paleontologists use homology to understand the evolution of organisms!. Paleontology, Homology, and Evolution. Paleontologists use homology to understand the evolution of organisms! - PowerPoint PPT Presentation

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Paleontology, Homology, and Evolution

Paleontology, Homology, and EvolutionMay 22, 2013

Paleontology, Homology, and EvolutionPaleontologists use homology to understand the evolution of organisms!

Paleontology, Homology, and EvolutionPaleontologists use homology to understand the evolution of organisms!

DERIVED CHARACTERISTICS

Derived CharacteristicsA trait that has been passed down from the ancestral organism

Derived CharacteristicsA trait that has been passed down from the ancestral organism

MulticellularVertebratesMammalsDerived CharacteristicsTrace back to understand evolutionGood example are horses and their ancestorsUsing a number of morphological traits, they can trace back the ancestry of modern horses.

Whales

PaleontologyIt is your job now to become the paleontologists and find what is in the soil.PaleontologyUse the pictures of modern organisms to try and figure out what where the fossils come from!

What did your fossil organism(s) look like?What did your fossil organism(s) look like?

What did your fossil organism(s) look like?

What did your fossil organism(s) look like?

What could you tell about the behavior or environment?What could you tell about the behavior or environment?Fossils are found right here in LA at the La Brea tar pits.

Take a look at the fossils from the tar pits-what can we tell about these organisms?

How did they get trapped in the tar pit?Dire WolfCanus dirus

BisonBison antiquus

Other organismsCamels (Camelops hesternus)

Other organismsGround Sloth (Paralmylodon harlani)

Other organismsMammoths (Mammuthus columbi)

Other organismsSmilodon (Smilodon fatalis)

Other organismsCalifornia dogwood (Cornus californica)

Other organismsWhite Sage (Salvia apiana)

Environment

La Brea