A small and scarcely encountered cirripede from the Campanian.  The ornate carina and rostrum are the most readily recognised skeletal elements.

A

B

1).  Brachylepas naissanti - unique articulated partial captiulum (Belemnitella mucronata zone, Thorpe, near Norwich, Norfolk, Rowe Collection, BMNH (British Museum (Natural History) London) In.27160); (A) x7.3; (B) x6.0.  Images © 2008 The Natural History Museum, by kind permission.