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Word: aptychus (lookup in dictionary) (lookup stats)
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Geological Conference. Paper: The Function and Systematic Importance of the Aptychus in Ammonites. Dr. C. R. Eastman.- The Quartz Porphyry of Mt. Pequawket. Mr. R. A. Daly. Geological Laboratory, Room...

Author: NO WRITER ATTRIBUTED | Title: University Calendar. | 4/14/1896 | See Source »

Geological Conference. Paper: The Function and Systematic Importance of the Aptychus in Ammonites. Dr. C. R. Eastman.- The Quartz Porphyry of Mt. Pequawket. Mr. R. A. Daly. Geological Laboratory, Room...

Author: NO WRITER ATTRIBUTED | Title: University Calendar. | 4/11/1896 | See Source »

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