Table 29 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Table 29. Conch ontogeny of Stockumites parallelus sp. nov. from Oberrödinghausen and Oese.
dmconch shapewhorl cross section shapewhorl expansion2 mmthinly pachyconic; subevolutemoderately depressed; strongly embracingmoderate(ww/dm ~0.65; uw/dm ~0.35)(ww/wh ~1.70; IZR ~0.30)(WER ~1.80)5 mmthinly pachyconic; subinvoluteweakly depressed; very strongly embracingmoderate(ww/dm ~0.65; uw/dm ~0.20)(ww/wh ~1.40; IZR ~0.45)(WER ~1.80)15 mmthickly discoidal; involuteweakly depressed; very strongly embracingmoderate(ww/dm ~0.55; uw/dm ~0.05)(ww/wh ~1.05; IZR ~0.55)(WER ~1.80)30 mmthickly discoidal; involuteweakly compressed; very strongly embracingmoderate(ww/dm ~0.50; uw/dm ~0.00)(ww/wh ~0.95; IZR ~0.55)(WER ~1.90)