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• Image Gallery
Brachiopods
Brachiopods (BRAK-ee-uh-pahds) use hair-like cilia on a coiled, comb-like “arm” to draw water and food into their gut. Like some mollusks (such as clams and oysters), brachiopods have a set of two opposing shells—but in brachiopods, one shell is bigger than the other.
Within groups, diversity and numbers can rise and fall over time. In Cambrian and Ordovician times, more brachiopods than ever attached to or burrowed into the ocean floor. Today, brachiopods are found only in deep waters or cold polar ocean regions.
Continue to Arthropod Images. >>
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