Dallas Paleo Society

Dallas Paleo Society

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The Dallas Paleontological Society was founded in 1984 for the purpose of promoting interest in and knowledge of the science of paleontology.

No one knows exactly when or where the original idea for such an organization was conceived. However, it was discussed from time to time during the early 1980s by Charles Finsley and a few of his "fossil volunteers" at the former Dallas Museum of National History (currently Museum of Nature and Science, Dallas, Texas). In 1984, when work on the reconstruction of the mammoth got underway and the vo

02/05/2026

We have plenty of rudists in the north Texas area. We find large individual Durania in the Austin Chalk and Ozan Marl. And the Edwards Limestone, the equivalent to the Goodland Limestone to the southwest, is full of Caprinids and other rudists. They sll have very thick shells, and are often recrystalized and the chamber filled with large calcite crystals. Here is what that looks like in thin section. Under crossed polarized light, which makes the beautiful colors.

As you may know I love crystalline rocks, but sometimes I also work with sedimentary ones.
And they contain small treasures, too!
Like this small Rudist in the "Pietra di Aurisina".
Width 5 mm.

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Brookhaven College
Dallas, TX
75244