Published July 20, 2023
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Table 15 in The ammonoids from the Gattendorfia Limestone of Gattendorf (Devonian-Carboniferous boundary; Upper Franconia, Germany)
Authors/Creators
- 1. Museum für Naturkunde, Leibniz-Institut für Evolutions-und Biodiversitätsforschung, Invalidenstrasse 43, 10115 Berlin, Germany.
Description
Table 15. Conch ontogeny of Acutimitoceras acutum (Schindewolf, 1923) from Gattendorf und Saalfeld.
| dm | conch shape | whorl cross section shape | whorl expansion |
|---|---|---|---|
| 2 mm | thickly discoidal; subevolute (ww/dm ~ 0.58; uw/dm ~ 0.40) | moderately depressed; strongly embracing (ww/wh ~ 1.75; IZR ~ 0.40) | low (WER ~ 1.55) |
| 5 mm | thickly discoidal; subinvolute (ww/dm ~ 0.55; uw/dm ~ 0.20) | weakly depressed; very strongly embracing (ww/wh ~ 1.25; IZR ~ 0.45) | low (WER ~ 1.70) |
| 15 mm | thinly discoidal; involute (ww/dm ~ 0.40; uw/dm ~ 0.08) | weakly compressed; very strongly embracing (ww/wh ~ 0.65; IZR ~ 0.45) | high (WER ~ 2.05) |
| 30 mm | extremely discoidal; involute (ww/dm ~ 0.30; uw/dm ~ 0.00) | weakly compressed; very strongly embracing (ww/wh ~ 0.55; IZR ~ 0.45) | high (WER ~ 2.20) |
Notes
Published as part of Korn, Dieter & Weyer, Dieter, 2023, The ammonoids from the Gattendorfia Limestone of Gattendorf (Devonian-Carboniferous boundary; Upper Franconia, Germany), pp. 44 in European Journal of Taxonomy 883 on page 44, DOI: 10.5852/ejt.2023.883.2179, http://zenodo.org/record/8177861
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Additional details
Identifiers
References
- Schindewolf O. H. 1923. Beitrage zur Kenntnis des Palaozoikums in Oberfranken, Ostthuringen und dem Sachsischen Vogtlande. I. Stratigraphie und Ammoneenfauna des Oberdevons von Hof a. S. Neues Jahrbuch fur Mineralogie, Geologie und Palaontologie, Beilage-Band 49: 250 - 357, 393 - 509.