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Wood, R.A., Grotzinger, J.P. and Dickson, J.A.D. 2002. Proterozoic Modular Biomineralized Metazoan from the Nama Group, Namibia. Science, 296(5577): 2383-2386


Description:

Proterozoic Modular Biomineralized Metazoan from the Nama Group, Namibia.

Summary / Notes:

We describe a Proterozoic, fully biomineralized metazoan from the Omkyk Member (∼549 million years before the present) of the northern Nama Group, Namibia. Namapoikia rietoogensis gen. et sp. nov. is up to 1 meter in diameter and bears a complex and robust biomineralized skeleton; it probably represents a cnidarian or poriferan. Namapoikia encrusts perpendicular to the walls of vertical synsedimentary fissures in microbial reefs. This finding implies that large, modular metazoans with biologically controlled mineralization appeared some 15 million years earlier than previously documented.

Year: 2002

Type: Journal Article

URL: http://www.sciencemag.org/content/296/5577/2383.abstract


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