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 39. Conch ontogeny of Stockumites voehringeri sp. nov. from Oberrödinghausen.
dmconch shapewhorl cross section shapewhorl expansion
2 mmthickly pachyconic; subevolute (ww/dm ~0.80; uw/dm ~0.42)strongly depressed; strongly embracing (ww/wh ~2.50; IZR ~0.35)moderate (WER ~1.80)
5 mmthinly globular; subinvolute (ww/dm ~0.90; uw/dm ~0.25)strongly depressed; very strongly embracing (ww/wh ~2.00; IZR ~0.45)moderate (WER ~1.80)
15 mmthickly pachyconic; involute (ww/dm ~0.75; uw/dm ~0.05)weakly depressed; very strongly embracing (ww/wh ~1.30; IZR ~0.55)moderate (WER ~1.95)
30 mmthickly discoidal; involute (ww/dm = 0.50–0.60; uw/dm ~0.00)weakly compressed to weakly depressed; very strongly embracing (ww/wh = 0.90–1.10; IZR ~0.50)moderate (WER = 1.80– 1.95)
50 mmthickly discoidal; involute (ww/dm = 0.45–0.55; uw/dm ~0.00)weakly compressed; very strongly embracing (ww/wh = 0.80–0.90; IZR ~0.50)Moderate to high (WER = 1.90– 2.05)