Table 99 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Table 99. Conch ontogeny of Hasselbachia erronea sp. nov. from Oberrödinghausen.
dmconch shapewhorl cross section shapewhorl expansion2 mmthinly pachyconic; subevolute (ww/dm ~0.72; uw/dm ~0.35)strongly depressed; strongly embracing (ww/wh ~2.10; IZR ~0.35)low (WER ~1.70)4 mmthickly pachyconic; subevolute (ww/dm ~0.75; uw/dm ~0.38)strongly depressed; strongly embracing (ww/wh ~2.15; IZR ~0.35)low (WER ~1.65)12 mmthickly pachyconic; subinvolute (ww/dm ~0.75; uw/dm ~0.20)moderately depressed; very strongly embracing (ww/wh ~1.70; IZR ~0.55)low (WER ~1.65)16 mmthickly pachyconic; involute (ww/dm ~0.75; uw/dm ~0.10)moderately depressed; very strongly embracing (ww/wh ~1.60; IZR ~0.55)low (WER ~1.60)