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 7. Conch ontogeny of Mimimitoceras mina sp. nov.
dmconch shapewhorl cross section shapewhorl expansion
2 mmthinly globular; involutemoderately depressed; very strongly embracingvery low to low
(ww/dm ~0.90; uw/dm ~0.12)(ww/wh ~1.95; IZR ~0.60)(WER ~1.50)
8 mmthickly pachyconic; involuteweakly depressed; very strongly embracinglow
(ww/dm ~0.80; uw/dm ~0.02)(ww/wh ~1.45; IZR = 0.60)(WER ~1.55)
15 mmthinly pachyconic; involuteweakly depressed; very strongly embracinglow
(ww/dm ~0.70; uw/dm ~0.01)(ww/wh ~1.25; IZR ~0.60)(WER ~1.65)