Taxonomy and ontogeny of the Lituitida (Cephalopoda) from Orthoceratite Limestone erratics (Middle Ordovician) Author Aubrechtová, Martina CAF4231-8787-4051-8D76-F983332517EE Institute of Geology and Palaeontology, Faculty of Science, Charles University Prague, Albertov 6, Prague, 12843, Czech Republic. & Institute of Geology, Czech Academy of Sciences, Rozvojová 269, Prague, 16500, Czech Republic. aubrech1@natur.cuni.cz,aubrechtova@gli.cas.cz Author Korn, Dieter 286CA4F3-7EBC-4AEF-A66A-B2508D001367 Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstrasse 43, 10115 Berlin, Germany. dieter.korn@mfn.berlin text European Journal of Taxonomy 2022 2022-03-08 799 1 1 108 http://dx.doi.org/10.5852/ejt.2022.799.1681 journal article 20271 10.5852/ejt.2022.799.1681 f53d5465-7162-45d6-892b-dfc0b8d99789 2118-9773 6341270 F52DBAB0-38C7-400F-9BA1-E2D8E6B19E7E Family Lituitidae Phillips, 1848 Diagnosis Family of the order Lituitida with coiled apical part of the conch; whorls detached or weakly impressed dorsally. Whorl profile elliptic in the coiled stage, elliptic or circular in the uncoiled stage. Shell surface with growth lines, transverse lirae and/or annuli; ornament elements variable in outline but typically with conspicuous lateral and ventral sinus. Terminal aperture characterised by two to five lappets and deep ventral and lateral sinuses. Siphuncle ventral in the earliest phragmocone chambers, subdorsal in the following part of the coiled stage and subcentral or central in the uncoiled stage (after Furnish & Glenister 1964 ). Genera included Ancistroceras Boll, 1857 ; Angelinoceras Hyatt, 1894 ; Cyclolituites Remelé, 1886 ; Holmiceras Hyatt, 1894 ; Jingshanlingoceras Zou, 1987; Lituites Bertrand, 1763 ; Pseudoancistroceras Xu & Lai, 1987; Sinoceroides Xu & Lai, 1987; Tapinolituites Gao, 1982; Trilacinoceras Sweet, 1958 ; Yangjiapingoceras Xu, 1977.