Neocomitinae

Pictet, Antoine & Bulot, Luc Georges, 2025, New or poorly known Neocomitidae (Ammonitina, Ammonoida) from the lower Hauterivian sedimentary series of the Jura platform and the Vocontian trough (France and Switzerland), Swiss Journal of Palaeontology (7) 144 (1), pp. 1-24 : 10

Neocomitinae Salfeld, 1921

Te generic content of the Neocomitinae subfamily varies, even radically depending on the authors. According to Tieuloy (1977), this group is limited to Neocomitids whose lobe U1 is subdivided into two lobules U1v and U1d and whose lateral lobe is symmetrical or very slightly asymmetrical in the development of its external and internal elements. He excludes the Endemoceratinae and the Leopoldiinae , which he considers as synonyms. Conversely, Atrops (1967) and Reboulet (1996) include these last in the Neocomitinae subfamily. Wright et al. (1996) have a completely different view of the content of the Neocomitinae and Endemoceatinae subfamilies and also include the Leopoldiinae in the Endemoceratinae . Te vision of the Neocomitinae used here is that of Tieuloy (1977).

Te Neocomitinae have been almost unknown up to now in the lower Hauterivian sediments of the Swiss and French Jura mountains, where the faunal associations are dominated by the Leopoldiinae ( Acanthodiscus , Leopoldia , Breistrofferella , Saynella , Lyticoceras , Cruasiceras ). Only a handful of specimens has been assigned to the genus Tescheniceras Vašíček, 2020 (= Teschenites auct.) by Busnardo and Tieuloy (1989) and Charollais et al., (1989). Nevertheless, museum collections of Geneva, Lausanne, Neuchâtel and Bern contain many specimens of Tescheniceras originating from the uppermost Valanginian and lowermost Hauterivian marlstones.