Belemnite chalk's dominant fossil refers to which organism?

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Multiple Choice

Belemnite chalk's dominant fossil refers to which organism?

Explanation:
Belemnite chalk gets its name from belemnites, the internal calcitic guards of ancient cephalopods. These animals were dart-like, slender relatives of modern squid and cuttlefish. In these chalk deposits, belemnites occur in such large numbers that their fossils dominate the macrofossil assemblage, shaping the characteristic fossil content of the bed. Other fossils like oysters (Exogyra virgula), ammonites, and sea urchins appear but are far less abundant. So, the dominant fossil in Belemnite chalk is the belemnites—the ancient squiddy cephalopods.

Belemnite chalk gets its name from belemnites, the internal calcitic guards of ancient cephalopods. These animals were dart-like, slender relatives of modern squid and cuttlefish. In these chalk deposits, belemnites occur in such large numbers that their fossils dominate the macrofossil assemblage, shaping the characteristic fossil content of the bed. Other fossils like oysters (Exogyra virgula), ammonites, and sea urchins appear but are far less abundant. So, the dominant fossil in Belemnite chalk is the belemnites—the ancient squiddy cephalopods.

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