THE FOSSIL OF THE DAY
A brachiopod from Tall Chief limestone, perhaps a Neospirifer.
Assorted brachiopods from Tall Chief limestone.
A layer of limestone tops the red sandstone at the Tall Chief site, like a grey-white beret tilted to one side of a redhead. It emerges from the landscape at a slight angle and terminates on the slope where both layers have been worn away. Since it is on top, it is the younger rock. Limestone would indicate deeper water, I think. This limestone is much harder than the sandstone, and it is difficult, at least for an amateur like me, to extract fossils from it without damaging or destroying the embedded fossils. I mostly settle for scrabbling about, looking for fossils that have already been weathered out of the rock. Eatonia, Rhynchotrema, Rynhotreta, Meekalla, Hustedia, are some of the possible species represented in this handful. I wish I could find my book with more detailed information on the geology and fossils specific to the Tulsa area. I would be more certain about identifying these fossils.
11:45:23 PM 
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