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by Stratigraphy.net
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Plecatrypa imbricata brachiopod from the Wenlock fm.

Source info:

Author: Dave
Date: 2014-10-24 09:01:00
Blog: Views of the Mahantango
URL: http://viewsofthemahantango.blogspot.com/2014/10/plecatrypa-imbricata-brachiopod-from.html

Summary:

Plecatrypa imbricata from the Silurian aged Wenlock formation (Wenlock epoch, Sheinwoodian to Homerian stage), near Dudley, England. The shell has a spirifer type shape with a wide hinge line and deep sulcus. It differs in that the pedicle valve does not have a triangular shaped opening for the pedicle muscle but rather a circular opening more typical of Rynchonellids. The shell also features strong, coarse ribbing and prominent growth lines. I have found this same genera in the Irondequoit Limestone of New York here.Brachial valveAnteriorPedicle valvePosteriorProfile

Content analysis:

Stratigraphic context:

Recognized stratigraphic terms [n]:Silurian [1]
Homerian [1]
Sheinwoodian [1]
Irondequoit Limestone [1]
Agenames chronostratigraphy [rating]:Silurian [0.8]
Paleozoic [0.8]
Phanerozoic [0.8]
Homerian [0.1]
Sheinwoodian [0.1]
Wenlock [0.67]
[0.1]

Geographic context:

LocationCountryLatitudeLongitude
DudleyGB52.5095-2.08351
IrondequoitUS43.2232-77.5898
LimestoneUS46.9122-67.8256

Keywords:

Brachiopod, circular opening, coarse ribbing, deep sulcus, Dudley, genera, Irondequoit Limestone, New York here.Brachial, pedicle muscle, pedicle valve, Plecatrypa imbricata brachiopod, prominent growth lines, Sheinwoodian, shell, Silurian, spirifer type shape, stage), near Dudley, England., triangular shaped opening, valveAnteriorPedicle valvePosteriorProfile, Wenlock epoch, Wenlock fm, Wenlock formation, wide hinge line

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