Geobulletin alpha

Source info:

Author:	Dave
Date:	2015-03-25 08:01:00
Blog:	Views of the Mahantango
URL:	http://viewsofthemahantango.blogspot.com/2015/03/mesopholidostrophia-semicircularis.html

Summary:

The nacerous shell of Mesopholidostrophia semicircularis is typical of the genera. It can be seen in it's N. America cousins, Pholidostrophia nacera, which are common in the Givetian stage of the middle Devonian. The specimen of M. semicircularis shown below comes from the Eifelian stage (Devonian) of the Junkerberg formation near Gondelsheim, Eifel region, Germany.Specimen #1 Pedicle valveAnteriorBrachial valvePosteriorProfileSpecimen #2Pedicle valveAnteriorPosteriorProfileExamples of  Pholidostrophia geniculata from the Silica Shale of Ohio, Pholidostrophia nacrea from the Widder formation of Ontario, Canada and the Mahantango formation of Pennsylvania.

Content analysis:

Stratigraphic context:

Recognized stratigraphic terms [n]:	Devonian [1] Givetian [1] Eifelian [1] Silica Shale [1]
Agenames chronostratigraphy [rating]:	Devonian [0.75] Paleozoic [0.75] Phanerozoic [0.75] Givetian [0.1] Eifelian [0.1] Middle Devonian [0.67]

Geographic context:

Location	Country	Latitude	Longitude
Gondelsheim	DE	49.0596	8.65582
Ontario	CA	49.3843	-84.7563
Pennsylvania	US	40.9947	-77.6045
Silica	US	41.6797	-83.7422
Germany	DE	51.1642	10.4542
United States	US	37.1679	-95.845

Keywords:

2Pedicle valveAnteriorPosteriorProfileExamples, Brachiopod, comes, Eifel region, Eifelian stage, genera, Germany, Germany.Specimen, Givetian stage, Gondelsheim, Junkerberg formation, M., Mahantango formation, Mesopholidostrophia semicircularis, middle, N. America cousins, nacerous shell, Ohio, Ontario, Pedicle valveAnteriorBrachial valvePosteriorProfileSpecimen, Pholidostrophia geniculata, Pholidostrophia nacera, Pholidostrophia nacrea, Silica Shale, Widder formation