Table 31 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Table 31. Conch ontogeny of Stockumites procedens (Korn, 1984).
dmconch shapewhorl cross section shapewhorl expansion2 mmthinly pachyconic; subevolute (ww/dm ~0.65; uw/dm ~0.40)moderately depressed; weakly embracing (ww/wh ~1.85; IZR ~0.15)moderate (WER ~1.95)5 mmthinly pachyconic; subevolute (ww/dm ~0.65; uw/dm ~0.35)moderately depressed; moderately embracing (ww/wh ~1.60; IZR ~0.30)moderate (WER ~1.95)15 mmthinly pachyconic; involute (ww/dm ~0.65; uw/dm ~0.12)weakly depressed; very strongly embracing (ww/wh ~1.15; IZR ~0.50)moderate (WER ~1.85)30 mmthickly discoidal; involute (ww/dm ~0.58; uw/dm ~0.04)weakly depressed; moderately embracing (ww/wh ~1.05; IZR ~0.40)very high (WER ~2.35)