Table 52 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Table 52. Conch ontogeny of Costimitoceras ornatum Vöhringer, 1960 from Oberrödinghausen.
dmconch shapewhorl cross section shapewhorl expansion5 mmthickly discoidal; subevoluteweakly depressed; strongly embracingmoderate(ww/dm ~0.55; uw/dm ~0.35)(ww/wh ~1.40; IZR ~0.35)(WER ~1.75)15 mmthickly discoidal; involuteweakly compressed; very strongly embracingmoderate(ww/dm ~0.50; uw/dm ~0.05)(ww/wh ~0.90; IZR ~0.50)(WER ~1.95)25 mmthinly discoidal; involuteweakly compressed; very strongly embracinghigh(ww/dm ~0.40; uw/dm ~0.00)(ww/wh ~0.70; IZR ~0.45)(WER ~2.10)