Pyritized Graptolites

Pyritized Graptolites
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Details of Pyritized Graptolites

About Pyritized Graptolites
Pyritized Graptolites- Radiographs of Rhaphidograptus toernquisti, Monograptus atavus and Pseudoclimacograptus undulatus with explanations of the salient features.
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