Table 96 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Table 96. Conch ontogeny of Hasselbachia multisulcata (Vöhringer, 1960) from Oberrödinghausen. dmconch shapewhorl cross section shapewhorl expansion2 mmthickly pachyconic; subevolute (ww/dm ~0.80; uw/dm ~0.40)strongly depressed; strongly embracing (ww/wh ~2.50; IZR ~0.40)low (WER ~1.60)4 mmthinly globular; subevolute (ww/dm ~0.90; uw/dm ~0.45)very strongly depressed; strongly embracing (ww/wh ~2.75; IZR ~0.40)low (WER ~1.55)12 mmthickly pachyconic; subevolute (ww/dm ~0.75; uw/dm ~0.35)moderately depressed; very strongly embracing (ww/wh ~1.90; IZR ~0.60)very low (WER ~1.45)20 mmthickly discoidal; involute (ww/dm ~0.55; uw/dm ~0.10)weakly depressed; very strongly embracing very low (ww/wh ~1.40; IZR ~0.65) (WER ~1.40)表96 产自Oberrödinghausen的多槽哈瑟尔巴赫菊石（*Hasselbachia multisulcata*，Vöhringer, 1960）的壳体个体发育。 | 壳径（dm，mm） | 壳体形态 | 螺环横截面形态 | 螺环扩张参数 | | --- | --- | --- | --- | | 2 | 厚粗锥形；半外卷（壳宽相对壳径ww/dm≈0.80；脐径相对壳径uw/dm≈0.40） | 强烈扁平；强烈包卷（壳宽相对螺高ww/wh≈2.50；内卷率IZR≈0.40） | 较低（螺环扩张率WER≈1.60） | | 4 | 薄球形；半外卷（ww/dm≈0.90；uw/dm≈0.45） | 极强烈扁平；强烈包卷（ww/wh≈2.75；IZR≈0.40） | 较低（WER≈1.55） | | 12 | 厚粗锥形；半外卷（ww/dm≈0.75；uw/dm≈0.35） | 中等扁平；极强包卷（ww/wh≈1.90；IZR≈0.60） | 极低（WER≈1.45） | | 20 | 厚盘形；内卷（ww/dm≈0.55；uw/dm≈0.10） | 弱扁平；极强包卷（ww/wh≈1.40；IZR≈0.65） | 极低（WER≈1.40） |