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Title: !Fishes 2
Description: Bony Fishes: Osteichthyes: Class Sarcopterygii: Subclass Coelacanthimorpha
Total Flash Cards: 15
Created: 11/11/2009 09:14:23
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Cards in this set:
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| first fossils mid-devonian; not known after cretaceous; living Latimeria chalumnae in 1938 |
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| hollow spinous first dorsal fin |
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| 3 lobed w/ fringed or fleshy middle lobe |
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| unusual; b/w frontals and parietal; anterior part can be pulled ventrally in biting; head flexible at atlas |
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| filled w/ lipids for bouyancy |
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| only living vert w/ it (homologous) precursor to mammalian cochlea |
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