Citations:ancylocone


 * 1993, MV Kakabadzé, MZ Sharikadzé, "On the mode of life of heteromorph ammonites (heterocone, ancylocone, ptychocone)", Geobios:
 * whereas ancylocones in the planospiral stage are considered to be comparatively active swimmers. With the beginning of the uncoiled stage heterocones, as well as ancylocones,
 * 2013, Neil H. Landman, Kazushige Tanabe, Richard Arnold Davis, Ammonoid Paleobiology, page 623:
 * (ancylocones, scaphitids), and/or by (c) “fine-tuning” of Orientation by apertural shell thickening (and 7 shape of protuberances) for lowering of the aperture (widespread). The following late ontogenetic trends of function, habit, and
 * 2023, Kate LoMedico Marriott, Alexander Bartholomew, Donald R. Prothero, Evolution of the Ammonoids:
 * ancylocones appeared. Helical forms emerged, including the. Figure 2.2 Nautilus shell in cross section.