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Baculites compressus

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description Baculites compressus Overview

Baculites compressus is an extinct heteromorph ammonite from the Late Cretaceous of North America. Unlike ordinarily coiled ammonites, adult Baculites possessed a long, nearly straight shell divided internally into chambers, while the earliest shell remained coiled. B. compressus is known from deposits of the Western Interior Seaway, and its shell form and complex suture patterns help distinguish it from related species.

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What is Baculites compressus?

Baculites compressus is an extinct heteromorph ammonite from the Late Cretaceous of North America. Adults had a long, nearly straight shell divided into internal chambers, unlike the familiar coiled form of many ammonites.

How was Baculites compressus different from ordinary ammonites?

Its adult shell was nearly straight rather than tightly coiled. The earliest part of the shell was coiled before the animal developed the characteristic straight adult form.

What are the chambers inside a Baculites shell?

The shell was divided by internal partitions into chambers, a typical ammonite feature. These chambers formed a complex shell structure as the animal grew along its curved-to-straight shell.

When did Baculites compressus live?

Baculites compressus lived during the Late Cretaceous. Its fossils are known from North America, where the species is part of the diverse ammonite record from that period.

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