Table 18 in The pharciceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea)

Table 18. Conch ontogeny of Extropharciceras metallicum sp. nov.
dmconch shapewhorl cross section shapewhorl expansion45 mmextremely discoidal; evolute (ww/dm ~ 0.27; uw/dm ~ 0.55)weakly depressed; moderately embracing (ww/wh ~ 1.05; IZR ~ 0.25)low (WER ~ 1.55)65 mmextremely discoidal; evolute (ww/dm ~ 0.23; uw/dm ~ 0.50)weakly compressed; moderately embracing (ww/wh ~ 0.90; IZR ~ 0.25)low (WER ~ 1.55)