Brachiopods Past and Present by Sarah L.Long, Howard Brunton, L. Robin M. Cocks, Sarah L

By Sarah L.Long, Howard Brunton, L. Robin M. Cocks, Sarah L Long

The expansion historical past of a brachiopod is entombed in its shell, yet study on fossil and residing brachiopods has generated unanswered questions about those marine invertebrates. numerous participants to Brachiopods earlier and current touch upon their differing buildings and morphological aspect. They use those as examples of ontogenetic and evolutionary switch, as symptoms of taxonomic relationships, or to debate micro-structural shell morphology. inhabitants experiences of assorted species and up to date growth in molecular phylogeny are awarded. This unmarried compilation is a needs to for postgraduate scholars and researchers in evolution, zoology, geology, palaeontology and similar fields.

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Modulated microstructure in New Zealand brachiopods 31 Synchrotron X-ray fluorescence microprobe analysis Trace-element analyses were carried out on the synchrotron X-ray fluorescence microprobe at the Advanced Light Source (ALS) at Lawrence Berkeley Laboratories, Berkeley, California. Beam size was 3 6 microns. I used an aluminum foil on the TM collimator. Radial sections of valves were cut with an Isomet saw along the plane of symmetry, perpendicular to the direction of growth. 5 mm in thickness) were mounted on one-inch plexiglass rounds using Crystal Bond.

McConnell, D. (1973) Apatite – Its Crystal Chemistry, Mineralogy, Utilization, and Geologic and Biologic Occurrences (Wien, Heidelberg, New York: Springer). H. R. (1969) Crystal chemistry investigation of natural apatites. American Mineralogist, 54, 1374–1391. Nathan, Y. (1984) The mineralogy and geochemistry of phosphorites. In Nriagu and Moore (eds) Phosphate Minerals (Berlin, Heidelberg, New York, Tokyo: Springer), pp. 275–291. Nemliher, J. (1999) Mineralogy of Phanerozoic skeletal and sedimentary apatites: an XRD study.

McConnell, D. (1963) Inorganic constituents of the shell of the living brachiopod Lingula. Geological Society of America Bulletin, 74, 363–364. McConnell, D. (1973) Apatite – Its Crystal Chemistry, Mineralogy, Utilization, and Geologic and Biologic Occurrences (Wien, Heidelberg, New York: Springer). H. R. (1969) Crystal chemistry investigation of natural apatites. American Mineralogist, 54, 1374–1391. Nathan, Y. (1984) The mineralogy and geochemistry of phosphorites. In Nriagu and Moore (eds) Phosphate Minerals (Berlin, Heidelberg, New York, Tokyo: Springer), pp.

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