Table 18 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Table 18. Conch ontogeny of Kornia acia sp. nov.
dmconch shapewhorl cross section shapewhorl expansion2 mmspindle-shaped; subevolutevery strongly depressed; strongly embracinglow(ww/dm ~1.05; uw/dm ~0.35)(ww/wh ~2.80; IZR ~0.40)(WER ~1.55)8 mmthickly globular; involutestrongly depressed; very strongly embracingvery low(ww/dm ~1.00; uw/dm ~0.10)(ww/wh ~2.15; IZR ~0.65)(WER ~1.45)20 mmthinly globular; involutemoderately depressed; very strongly embracingvery low(ww/dm ~0.90; uw/dm ~0.10)(ww/wh ~1.80; IZR ~0.65)(WER ~1.45)