Belemnites may refer to:
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Belemnitida
Belemnitida (or belemnites) is an extinct order (biology), order of squid-like cephalopods that existed from the Late Triassic to Late Cretaceous (And possibly the Eocene). Unlike squid, belemnites had an internal skeleton that made up the cone ...
, an extinct order of cephalopods commonly known as "belemnites"
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''Belemnites'' (genus), a belemnite genus from the Early Jurassic
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