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Pentamerus

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Pen`tam´e`rus
n.1.(Paleon.) A genus of extinct Paleozoic brachiopods, often very abundant in the Upper Silurian.
Pentamerus limestone
(Geol.) a Silurian limestone composed largely of the shells of Pentamerus.
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A very rich association of shallow-water benthic fossils occurs in these strata, sometimes as scattered valves, sometimes as clusters of complete shells in living position, and sometimes as tempestitic accumulations of Pentamerus oblongos Sowerby (Kaljo 1970).
Conodont dating of some Telychian (Silurian) sections in ... by Mannik, Peep / Estonian Journal of Earth Sciences
On the stratigraphic range of the beds with Pentamerus oblongus and on the nature of the Late Llandoverian transgression in North Europe.
Redox changes in the deep shelf of the East Baltic Basin in the ... by Kiipli, Enli / Proceedings of the Estonian Academy of Sciences: Geology
In western Estonia the Rumba Formation typically consists of variably argillaceous, nodular to wavy-bedded biomicritic limestones (packstone and wackestone) with accumulations of the brachiopod Pentamerus oblongus at certain levels.
Upper Llandovery to middle Wenlock (Silurian) lithostratigraphy and ... by Nestor, Heldur; Nestor, Viiu / Proceedings of the Estonian Academy of Sciences: Geology
 
 
 
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