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Flashcards by Kit Wheat, created more than 1 year ago

aids Stasek Unit 1 Flashcards on Vertebrate Origins, created by Kit Wheat on 09/26/2016.

	Created by Kit Wheat over 7 years ago

Vertebrate Origins

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Phylum Chordata

Phylum Chordata Characteristics

Cambrian Vertebrates

Ordovician Vertbrates

Why did bone appear?

Conodont elements

freshwater vs. marine origin