The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany) Author Korn, Dieter 286CA4F3-7EBC-4AEF-A66A-B2508D001367 Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstrasse 43, 10115 Berlin, Germany. dieter.korn@mfn.berlin Author Weyer, Dieter A09A1738-C70E-4F22-A069-8B7DB4A1753D Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstrasse 43, 10115 Berlin, Germany. dieter.weyer@t-online.de text European Journal of Taxonomy 2023 2023-07-19 882 1 230 http://dx.doi.org/10.5852/ejt.2023.882.2177 journal article 58033 10.5852/ejt.2023.882.2177 57d1d191-2bf5-4229-a0f5-9ab472a114a6 2118-9773 8177581 67C909E4-C700-4F8D-B8CE-5FD9B2C5D549
Table 67. Conch ontogeny of Gattendorfia rhenana sp. nov. from Oberrödinghausen and Hasselbachtal.
dmconch shapewhorl cross section shapewhorl expansion
7 mmdiscoidal; evolute (ww/dm ~0.45; uw/dm ~0.55)moderately depressed; weakly embracing (ww/wh ~1.75; IZR ~0.15)low (WER ~1.70)
15 mmthickly discoidal; evolute (ww/dm ~0.58; uw/dm ~0.50)moderately depressed; moderately embracing (ww/wh ~1.95; IZR ~0.25)low (WER ~1.70)
30 mmthickly discoidal; subevolute (ww/dm ~0.55; uw/dm ~0.40)moderately depressed; moderately embracing (ww/wh ~1.65; IZR ~0.25)moderate (WER ~1.90)
50 mmthickly discoidal; subevolute (ww/dm ~0.55; uw/dm ~0.35)weakly depressed; moderately embracing (ww/wh ~1.45; IZR ~0.25)moderate (WER ~1.90)