Siliceous Tablets in the Larval Shells of Apatitic Discinid Brachiopods
- 27 March 1998
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 279 (5359) , 2094-2096
- https://doi.org/10.1126/science.279.5359.2094
Abstract
The marine bivalved Brachiopoda are abundant throughout the geological record and have apatitic (CaPO4-rich) or calcitic (CaCO3-rich) shells. Vesicles covering the larval valves of living apatitic-shelled discinids contain tablets of silica. The tablets are cemented into close-packed mosaics by spherular apatite in glycosaminoglycans. They are usually lost as vesicles degrade but leave imprints on the underlying apatitic shell. Similar imprints ornament larval surfaces of some of the earliest Paleozoic apatitic-shelled brachiopods and may also be indicators of siliceous biomineralization.Keywords
This publication has 8 references indexed in Scilit:
- The Third ModelProblems of Economic Transition, 1994
- Apatite Formation Induced by Silica Gel in a Simulated Body FluidJournal of the American Ceramic Society, 1992
- Bone‐bonding ability of P2O5‐Free CaO · SiO2 glassesJournal of Biomedical Materials Research, 1991
- Middle Ordovician phosphatic inarticulate brachiopods from Västergötland and Dalarna, SwedenPublished by Scandinavian University Press / Universitetsforlaget AS ,1989
- On BiomineralizationPublished by Oxford University Press (OUP) ,1989
- Detection and localization of silicon and associated elements in vertebrate bone tissue by imaging ion microscopyCalcified Tissue International, 1986
- Secretion and ultrastructure of the periostracum of some terebratulide brachiopodsProceedings of the Royal Society of London. B. Biological Sciences, 1978
- AerospaceScience News, 1970