Recently Elvis D. Snodgrass, who recently completed requirements for a master’s degree at the University of Oklahoma, brought the writer from the Oklahoma City office of the Mid-Continent Petroleum Company fragments of a core containing a graptolite from about 5 miles west and a little south of Edmond. The core came from the Mid-Continent’s well, Young No. 2, Sec. 31, T. 14 N., R. 3 W., at the depth of 7,568 feet.

The graptolite is Didymograptus bifidus (Hall) from the same horizon in the lower part of the Joins formation as its common associate D. artus, described and illustrated earlier...

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