Early teleost otolith morphogenesis observed in the Jurassic of Franconia, Bavaria, southern Germany Author Schwarzhans, Werner https://orcid.org/0000-0003-4842-7989 Zoological Museum, Natural History Museum of Denmark, Universitetsparken 15, 2100 Kobenhavn, Denmark & Ahrensburger Weg 103, 22359 Hamburg, Germany wwschwarz@aol.com Author Keupp, Helmut Freie Universitaet Berlin, Institut fuer Geologische Wissenschaften, Fachrichtung Palaeontologie, Malteser Strasse 74 - 100, Haus D, 12249 Berlin, Germany text Zitteliana 2022 2022-04-12 96 51 67 http://dx.doi.org/10.3897/zitteliana.96.81737 journal article http://dx.doi.org/10.3897/zitteliana.96.81737 2747-8106-96-51 CD8C70BA025345408EFCD430A12F6B35 FCEF2A912BC258BBB022681E86486B06 Animalia Taxon classification Archaeotolithus bornholmiensis (Malling & Gronwall , 1909) Plate 4, fig. 1 Otolithus bornholmiensis 1909 Otolithus bornholmiensis - Malling & Gronwall : pl. 11, figs 14-16. Arcaeotolithus bornholmiensis 1912 Arcaeotolithus bornholmiensis (Malling & Gronwall , 1909) - Stolley: pl. 7, figs 4-5. Otolithus ?2014 archaeotoliths group 1 - Hesse: fig. 28A-B. Material. 1 specimen from the late Pliensbachian, Hawkerense subzone, of Buttenheim (SNSB-BSPG 2022 IV 7 , Plate 4 , fig. 1). Differential diagnosis. Archaeotolithus bornholmiensis is the only species in the genus with almost no indication of a sulcus and further differs from its congeners in the more strongly convex inner face. It is thus also the one most resembling the characteristics of a lapillus. Plate 4. Otoliths of Archaeotolithus . fig. 1 : Achaeotolithus bornholmiensis (Malling & Gronwall , 1909), from the late Pliensbachian of Buttenheim, holotype SNSB-BSPG 2022 IV 7, EPH horizon. figs 2-4 : Archaeotolithus doppelsteini sp. nov., from the late Pliensbachian of Buttenheim, EPH horizon; 2 : holotype SNSB-BSPG 2022 IV 8; 3-4 : paratypes SNSB-BSPG 2022 IV 9. figs 5-7 : Archaeotolithus trigonalis Stolley, 1912, from the late Pliensbachian of Buttenheim, EPH horizon, figured specimens SNSB-BSPG 2022 IV 12.