Table 25 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Table 25. Conch ontogeny of Stockumites intermedius (Schindewolf, 1923) from Oberrödinghausen, bed 6.
dmconch shapewhorl cross section shapewhorl expansion2 mmthinly pachyconic; subevolute (ww/dm ~0.65; uw/dm ~0.40)moderately depressed; moderately embracing (ww/wh ~1.90; IZR ~0.25)moderate (WER ~1.75)5 mmthinly pachyconic; subinvolute (ww/dm ~0.70; uw/dm ~0.20)moderately depressed; very strongly embracing (ww/wh ~1.55; IZR ~0.45)moderate (WER ~1.75)15 mmthickly pachyconic; involute (ww/dm ~0.75; uw/dm ~0.05)weakly depressed; very strongly embracing (ww/wh ~1.25; IZR ~0.55)moderate (WER ~1.80)30 mmthinly pachyconic; involute (ww/dm ~0.65; uw/dm ~0.00)weakly depressed; very strongly embracing (ww/wh ~1.20; IZR ~0.55)moderate (WER ~1.85)