The purpose of this page will be to update any interested members or guests on the progress and news of the Texas/Pennsylvanian Study Group (TXPn)
Some of us have decided to initiate a group dedicated to learning more about the fossils from the Finis Shale member of the Graham Formation found at the Lost creek Dam site near Jacksboro Texas.
We now include all Pennsylvanian exposures in Texas.
You can participate in person or online through the DPS website.
Please send an email response to me at firstname.lastname@example.org to get your name added to the list if you want to join us. Please forward this to anyone you know who isn't a member and might be interested.
Until further notice we have no meetings planned but will meet at the U.T. Arlington Geo Science Building room 202 at 9:00AM on Saturdays when someone has a topic to present. We will send an email to members to notify them of the date. Parking is free on Saturdays at visitor parking spaces and at parking meters on campus.
There are some things found at these sites that are not thoroughly understood, not fully researched or can be difficult to distinguish from similar specimens. We already have help promised from some prominent experts so surely we can learn something new or at least identify possible avenues of investigation for someone interested in taking on a project. We will be posting pictures and information about items collected at the site from time to time, and also we will be posting meeting times and topics that will be discussed. Check back here to see the latest.
The image you see above represents the major deposits from the Pennsylvanian Sub-period in Texas.
They stretch from north of Jacksboro to south of Brownwood and include 4 geological series, top-left to bottom:
Virgilian, Missourian, DesMoinesian and Atokan/Morrowan combined.
Thanks to Bob Williams and Ben Neuman for locating these resources listed below.
Resources - Click to download
Pennsylvanian Color Guide Index of Genera
Lost Creek Resevoir - Jacksboro Fossil Identification
The Influence of Sea Level Changes and Possible Pycnocline Shifts on Benthic Communities in the Finis Sahale (Virgilian) Near Jacksboro, North Central Texas
Pictorial Guide to Upper Pennsylvanian Fossils By Ben Neuman, in conjunction with the Dallas Paleontological Society
Section 3 – Cnidaria, Porifera, Bryozoa, Ichnofossils
Lower Permian Brachiopods and Molluscs From the Upper Jungle Creek Formation, Northern Yukon Territory, Shi Waterhouse 1996
Images -Click to Enlarge