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Hello Vladimir,</div>
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I have looked at many Clayton samples over the years. The Clayton is in Zones NP 1-3. The McBryde is the upper member of the Clayton, and at its type locality, it is in Zone NP 3. The lower Pine Barren Member is from Zones NP 1-2. </div>
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<span style="font-size:11.0pt;mso-bidi-font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Gibson, T.G.,
Mancini, E.A., and <b>Bybell, L.M.</b>, 1982, Lower Paleogene stratigraphy of <st1:place>
<st1:state>Alabama</st1:state></st1:place>:<span style="mso-spacerun:yes"> </span>
Gulf Coast Association of Geological Societies Transactions, v. 32, p. 449-458. I may have other publications about this, but because of Covid I haven't been to my office in ages, and that is where I have copies of all my publications.</span><br>
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I hope this helps you.</div>
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Laurel Bybell</div>
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USGS Scientist Emeritus</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Coccoliths <coccoliths-bounces@fcnym.unlp.edu.ar> on behalf of Мусатов Владимир <dr.musatov@yandex.ru><br>
<b>Sent:</b> Wednesday, April 6, 2022 9:04 AM<br>
<b>To:</b> coccoliths@fcnym.unlp.edu.ar <coccoliths@fcnym.unlp.edu.ar><br>
<b>Subject:</b> [EXTERNAL] [coccoliths] (no subject)</font>
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<div>Dear Colleagues,</div>
<div>do any of you have any research results on nannofossils from the McBryde member of the Clayton Formation at the base of the Midway group?</div>
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<div><span lang="en">Is it possible to get an article where the age of these formations is indicated by nanofossils?</span></div>
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<div>Best wishes,</div>
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<div>Vladimir Musatov</div>
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