Author: Andrew B. Smith

Publisher:

Published: 1996

Total Pages:

ISBN-13:

Part 4 completes the description of the regular echinoids from the British Cretaceous. Twelve species of Phymosomatidae are described, belonging to the genera Phymosoma andGauthiera, including one new species Phymosoma paynei. The placement of the genus Cottaldia is discussed and the two species assigned to this genus described. There are nine species assigned to the Camarodonta, placed in the genera Glyptocyphus, Echinocyphus and Zeuglopleurus. Two of these are described as new species: Echinocyphus intermedius and Zeuglopleurus dictyopleurides.