Charcharodon megalodonFrom the Tertiary in California
©
2004 UCMP
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Helicoprion nevadensisFrom the Carboniferous in Nevada
©
2004 UCMP
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Squalicorax pristodontusFrom the Quaternary in Alabama
©
2003 Gary Stringer, University of Louisiana at Monroe
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OrthacanthusFrom the Carboniferous in West Virginia
©
2000 West Virginia Geological and Economic Survey
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Heliobatis radiansFrom the Tertiary in Wyoming
©
2002 The Virtual Fossil Museum
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Ptychodus polygyrusFrom the Cretaceous in Kansas
©
2004 Micheal J. Everhart
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ChondrichthyesFrom the Cretaceous in New Jersey
©
2003 Otto S. Zapecza
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Ctenacanthus amblyxiphiasFrom the Permian in Kansas
©
2003 Michael J. Everhart
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Petalodus sp.From the Permian in Kansas
©
2003 Micheal J. Everhart
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