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Keywords from Image Description:
FMIB Examples of shells with flattened spire Polygyratia globose spire Natica greatly produced spire Terebra.jpeg Examples of shells with flattened spire Polygyratia globose spire Natica greatly produced spire Terebra Subject Shells Tag Mollusks Cite book Molluscs Brachiopods Recent Brachiopods Fossil Cooke Shipley Reed London