Field Notebook: SD, NE 1959
Page 7
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Transcription
4. Scaphites nicolloti : Cast of the specimen found by JAJ, in Maastrichtian of Heemmoor-Werstede (Nordenhorst) Form, and mentioned by him in his note with Cobben & Reckzie. JAJ points out that this specimen has the relatively large umbilicus, ventro-lateral nodes on septate portion and venter like typical nicolloti. Only specimen he knows from Europe that resembles D. nic as he conceives of the species Cast of crushed specimen, ribbing on septate part somewhat smeared but standard. Umbilicus broader than most nicolloti's and whorl height does not expand as rapidly forward. Body chamber not preserved. Still D. nic is about all you could call it. 5. nicolloti vs constrictus JAJ holds 2nd specimens confirm that European constrictus characterized by small umbilicus, ventro-lateral nodes on body chamber only, relatively course ribbing except in v. tenuistriatus, and the Arizona venter. He believes that there is a