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Fossil 1.0
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Spirifer
Classification:
Phylum:Brachiopoda
Class:   Articulata
Order:      Spiriferida
Genus:         Spirifer
Details:
 
Stratigraphic age range:

Mississippian to Pennsylvanian

Habit:Marine epifaunal

Feeding style:Suspension feeder

Distinguishing
characteristics:
Has a fold and sulcus, costae and a strophic hinge line. A Spirifer shell is also impuctate and biconvex. Exhibits a larger pedicle valve. Has plications.

Images: