Calcitic nacreous ultrastructures in Bryozoans: implications for comparative biomineralization of lophophorates and Molluscs.

From: The Biological Bulletin | Date: June 1, 1995| Author: Taylor, Paul D.; Weedon, Michael J. | Copyright information

The occurrence of nacreous-type fabrics in bryozoans has broad implications for our understanding of similarities between lophophorate and molluscan biomineralization. Calcitic semi-nacreous ultrastructures in the skeletons of several species of cyclostome bryozoans belonging to the suborders Tubuliporina and Articulata are described. In these taxa semi-nacre is the dominant ultrastructure of the walls, and often succeeds a precursory fabric of tiny wedge-shaped crystallites. The semi-nacre c...

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