The tornoceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea) Author Korn, Dieter 304FF76E-83FB-478C-AAA9-BD5769C80918 Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstrasse 43, D- 10115 Berlin, Germany. dieter.korn@mfn.berlin Author Bockwinkel, Jürgen 1F1EDD42-B1CE-425C-9CBD-D19658A6C453 Dechant-Fein-Strasse 22, D- 51375 Leverkusen, Germany. jbockwinkel@t-online.de text European Journal of Taxonomy 2022 2022-03-21 806 32 51 http://zoobank.org/a2b2a310-8c8c-41b0-b934-1666129b7d90 journal article 20137 10.5852/ejt.2022.806.1699 ee706a5b-3456-4097-b44d-2ebfd40a0824 2118-9773 6373961 A2B2A310-8C8C-41B0-B934-1666129B7D90 Subfamily Aulatornoceratinae Becker, 1993 Diagnosis Subfamily of the family Tornoceratidae with compressed conch, umbilicus narrow to moderately wide. With distinct ventrolateral grooves. Ornament with biconvex growth lines with very high ventrolateral projection, often with coarse ribs. Sutural formula E A L I. Included genera Aulatornoceras Schindewolf, 1922 ; Truyolsoceras Montesinos, 1988 ; Polonoceras Dybczyński, 1913 ; Planitornoceras Becker, 1995 ; Armatites Becker, 1993 ; Paucitornoceras gen. nov.