The Somerset Shale Member (Salem Limestone) of Kentucky: Vertebrata

by Don R. Chesnut (chesnut<at>uky.edu)
©DRC 2014


Phylum Chordata Haeckel, 1874

Subphylum Vertebrata Cuvier, 1812

Class Chondrichthyes Huxley, 1880

Psephodus/Deltodus (form genera) sp.
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Chomatodus (form genus) sp.
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fin spine with double row of small spines
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