The Whiteside Museum

of Natural History

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One of the important changes we see in the terrestrial ecosystem transition is the change in soil color. The Clyde is composed of classic Wichita Group gray clays. Our site is gray clay that represents the last of the classic Wichita Group fauna. In the next terrestrial ecosystem, the Arroyo formation of the Clearfork group, the clays are now oxidized and stained blood red. This is a huge ecosystem change. Big fauna change. Effected everybody, and especially Dimetrodons.


From the evidence dating back to the early 1900’s from lots of great Arroyo skeletons and lots of early to mid Waggoner/Clyde skeletons, Dimetrodons evolved pretty quick. In a nutshell, we see...

Mary the Dimetrodon! Click here to continue reading!

We are pleased to announce that tickets are now on sale for our Fall 2016 Fundraiser, The Permian Promenade! It will be held on November 12, from 4 - 8 pm at WMNH in Seymour, TX. The highlight of the evening will be a presentation from our WMNH Museum Director, Chris Flis, entitled, "The Fossil Riches of Seymour." There will also be a silent auction which will include some exciting activities and other gift items, hamburgers/hot dogs and s'mores, a bake sale, museum tours and live animal demos! All monies raised will go towards the development and sustainment of youth science outreach programs! Tickets are only $35 for adults and $25 for children through age 13. Seating for the presentation will be on a first come, first serve basis.


The Program of activities is provided below along with a sign-up form for you to complete and send to WMNH.

         Guest Blogger

Permian Rocks! by Tracy Jon Houpt

                      Time Traveling

(Includes highlights about upcoming conference where Chris and Leigh will be presenting a research paper!)

The other day, as I was flying over Mississippi at 32,000 ft, I once again thought about how cool it would be to travel through time. Who wouldn’t ...    Read more



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