Gigantoproductus crassus Sarytcheva

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Gigantoproductus crassus Sarytcheva

Discussion:

Large shells with strong radial ribbing.

Viewer Comments:

This gigantoproductid has strong semi-regular radial ribbing and the
height, width and length dimensions are about the same. The specimens
illustrated here show scattered spine bases for large spines. One specimen
has half of the ventral valve broken away to show the interior of the dorsal
valve with many small endospines that project into the interior cavity and
on the broken shell margin the great thickness of the shell can be seen.

Tom Yancey

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Phylum Brachiopoda (brachiopods)
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