Geobulletin alpha

Source info:

Author:	Dave
Date:	2014-08-27 21:01:00
Blog:	Views of the Mahantango
URL:	http://viewsofthemahantango.blogspot.com/2014/08/parmorthis-waldronensis-brachiopod-from.html

Summary:

Another brachiopod from the diverse Waldron Shale (Silurian, Wenlock epoch) is Parmorthis waldronensis. It reminds me a little bit of Pseudoatrypa reticularis of the Devonian (because of one valve being convex and the other nearly flat) and Dalmanella multisecta of the Ordovician (because of the shape of the interarea). It also has a strong resemblance to Resserella elegantula specimens that I've found in the Irondequoit limestone near Lockport, NY.Brachial valveAnteriorPedicle valvePosteriorProfileIt turns out that a little research on the Fossilworks.org website (formerly Paleodb.org) shows that Parmorthis is a synonym of Resserella. So the resemblance is because they are one in the same. I will have to update the label to indicate Resserella waldronensis.

Content analysis:

Stratigraphic context:

Recognized stratigraphic terms [n]:	Devonian [1] Silurian [1] Ordovician [1] Waldron Shale [2]
Agenames chronostratigraphy [rating]:	Devonian [0.1] Silurian [0.76] Ordovician [0.1] Paleozoic [0.84] Phanerozoic [0.84] Wenlock [0.33]

Geographic context:

Location	Country	Latitude	Longitude
Irondequoit	US	43.2232	-77.5898
Limestone	US	46.9122	-67.8256
Lockport	US	43.1688	-78.7006
Waldron	US	41.7241	-84.4182

Keywords:

Brachiopod, convex, Dalmanella multisecta, diverse Waldron Shale, Fossilworks.org website, interarea, Irondequoit limestone, little bit, little research, Lockport, NY.Brachial valveAnteriorPedicle valvePosteriorProfileIt, Ordovician, Parmorthis waldronensis brachiopod, Pseudoatrypa reticularis, Resserella elegantula, Resserella waldronensis, shape, strong resemblance, synonym, Wenlock epoch