Table 62 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Table 62. Conch ontogeny of Nicimitoceras heterolobatum (Vöhringer, 1960) from Oberrödinghausen, narrowly umbilicate morphogroup.
dmconch shapewhorl cross section shapewhorl expansion2 mmthickly discoidal; evolute (ww/dm ~0.55; uw/dm ~0.45)moderately depressed; weakly embracing (ww/wh ~1.65; IZR ~0.25)low (WER ~1.60)5 mmthinly discoidal; subinvolute (ww/dm ~0.50; uw/dm ~0.20)weakly depressed; strongly embracing (ww/wh ~1.10; IZR ~0.45)low to moderate (WER ~1.75)15 mmthinly discoidal; involute (ww/dm ~0.50; uw/dm ~0.00)weakly compressed; very strongly embracing (ww/wh ~0.80; IZR ~0.50)high (WER ~2.10)30 mmthinly discoidal; involute (ww/dm ~0.40; uw/dm ~0.00)weakly compressed; very strongly embracing (ww/wh ~0.70; IZR ~0.50)high (WER ~2.05)