The disparity of priapulid, archaeopriapulid and palaeoscolecid worms in the light of new data.

Abstract

Priapulids and their extinct relatives, the archaeopriapulids and palaeoscolecids, are vermiform, carnivorous ecdysozoans with an armoured, extensible proboscis. These worms were an important component of marine communities during the Palaeozoic, but were especially abundant and diverse in the Cambrian. Today, they comprise just seven genera in four… (More)
DOI: 10.1111/j.1420-9101.2012.02586.x

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