Table 71 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Table 71. Conch ontogeny of Gattendorfia valdevoluta sp. nov. from Oberrödinghausen.
dmconch shapewhorl cross section shapewhorl expansion2 mmthinly discoidal; evolute (ww/dm ~0.40; uw/dm ~0.55)moderately depressed; weakly embracing (ww/wh ~1.75; IZR ~0.12)low (WER ~1.55)5 mmextremely discoidal; very evolute (ww/dm ~0.30; uw/dm ~0.65)moderately depressed; weakly embracing (ww/wh ~1.60; IZR ~0.12)low (WER ~1.55)15 mmthinly discoidal; evolute (ww/dm ~0.40; uw/dm ~0.50)weakly depressed; moderately embracing (ww/wh ~1.45; IZR ~0.20)low (WER ~1.70)30 mmthinly discoidal; subevolute (ww/dm ~0.40; uw/dm ~0.40)weakly depressed; strongly embracing (ww/wh ~1.10; IZR ~0.30)moderate (WER ~1.80)