Table 2 in Late Viséan (Mississippian) ammonoids (Cephalopoda) from the Central Moroccan Meseta

Table 2. Conch ontogeny of Goniatites amarensis sp. nov. from Sidi Amar. dmconch shapewhorl cross section shapewhorl expansion2 mmspindle-shaped; subinvolute (ww/dm ~ 1.25; uw/dm ~ 0.25)extremely depressed; very strongly embracing (ww/wh 3.00; IZR ~ 0.50)low (WER = 1.55)8 mmthickly globular; subinvolute (ww/dm ~ 1.00; uw/dm ~ 0.20)strongly depressed; extremely embracing (ww/wh ~ 2.25; IZR ~ 0.60)very low (WER ~ 1.48)20 mmthinly globular; subinvolute (ww/dm ~ 0.88; uw/dm ~ 0.20)moderately depressed; extremely embracing (ww/wh ~ 1.80; IZR ~ 0.60)low (WER ~ 1.50)50 mmthinly pachyconic; involute (ww/dm ~ 0.65; uw/dm ~ 0.14)weakly depressed; very strongly embracing (ww/wh ~ 1.30; IZR ~ 0.50)moderately high (WER ~ 1.85)