Translator Disclaimer
1 January 2006 Bryoliths (Bryozoa) in the Gulf of California
Author Affiliations +
Abstract

Populations of Diaperoforma californica (d'Orbigny) bryoliths were discovered in rhodolith beds, a sand habitat, and on a cobble bottom in the Gulf of California, Mexico, the first known observation of a modern free-living cyclostome bryozoan in the Northern Hemisphere. Densities ranged from a mean of 9.2 to 22.6 individuals/0.06 m2. Bryoliths from the deepest site were irregularly shaped and had the highest variation in shape; those from shallow sites were spheroidal. Water motion and bioturbation move the bryoliths and may determine their morphology. Schizomavella robertsonae (Soule, Soule & Chaney) bryoliths also occurred occasionally in one rhodolith bed sampled. Fossilized bryolith specimens of the cyclostome Diaperoforma californica (d'Orbigny) were found in a Pleistocene deposit near modern habitats.

D. W. James, M. S. Foster, and J. O'Sullivan "Bryoliths (Bryozoa) in the Gulf of California," Pacific Science 60(1), 117-124, (1 January 2006). https://doi.org/10.1353/psc.2005.0057
Accepted: 1 March 2005; Published: 1 January 2006
JOURNAL ARTICLE
8 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top