Table 65 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Table 65. Conch ontogeny of Voehringerites peracutus (Vöhringer, 1960) from Oberrödinghausen and Hasselbachtal. dmconch shapewhorl cross section shapewhorl expansion2 mmthinly pachyconic; subevolute (ww/dm ~0.70; uw/dm ~0.35)moderately depressed; strongly embracing (ww/wh ~1.90; IZR ~0.40)low (WER ~1.60)5 mmthickly discoidal; subinvolute (ww/dm ~0.55; uw/dm ~0.20)weakly depressed; very strongly embracing moderate (ww/wh ~1.25; IZR ~0.45) (WER ~1.90)15 mmextremely discoidal; involute (ww/dm ~0.32; uw/dm ~0.05)weakly compressed; very strongly embracing (ww/wh ~0.60; IZR ~0.45)high (WER ~2.10)30 mmextremely discoidal; involute (ww/dm ~0.28; uw/dm ~0.00)strongly compressed; very strongly embracing (ww/wh ~0.45; IZR ~0.45)high (WER ~2.15)表65 产自奥伯勒丁豪森（Oberrödinghausen）与哈瑟尔巴赫塔尔（Hasselbachtal）的尖突沃林格螺（Voehringerites peracutus, Vöhringer, 1960）的壳体个体发育特征 壳径（dm）、壳体外形、螺环横截面形态、螺环扩张率 2 mm：薄型粗锥形；半外旋（壳宽/壳径（ww/dm）≈0.70；脐宽/壳径（uw/dm）≈0.35）；中度凹陷；强烈包旋（壳宽/螺环高（ww/wh）≈1.90；内旋指数（IZR）≈0.40）；低扩张率（WER≈1.60） 5 mm：厚型盘形；半内旋（ww/dm≈0.55；uw/dm≈0.20）；弱凹陷；极强包旋（ww/wh≈1.25；IZR≈0.45）；中等扩张率（WER≈1.90） 15 mm：极扁平盘形；内旋（ww/dm≈0.32；uw/dm≈0.05）；弱侧扁；极强包旋（ww/wh≈0.60；IZR≈0.45）；高扩张率（WER≈2.10） 30 mm：极扁平盘形；内旋（ww/dm≈0.28；uw/dm≈0.00）；强烈侧扁；极强包旋（ww/wh≈0.45；IZR≈0.45）；高扩张率（WER≈2.15）