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Pseudocrinites

Pseudocrinites The theca is strongly flattened and circular in outline, and has two narrow ambulacra that run around the margin and carry short, stout brachioles. The theca is made up of a few very large , rhomb-shaped respiratory pores. The short, tapering stem culminates in club-shaped root. HABITAT This genus lived as a filter feeder, attached to a shell or pebble, on the sea floor. Copyright 1992 Dorling Kindersley Limited, London Text copyright 1992 Cyril Walker, David Ward. .