FIG. 14. — A1-A3 in Antaganides n. gen., a new genus of Middle Jurassic nautiloid, ancestor of Pseudaganides Spath, 1927, with discussion on the phyletic origin of the family Pseudonautilidae

FIG. 14. — A1-A3, Pseudaganides subbiangulatus (d'Orbigny, 1850), specimen 2023.PB.N144, la Grève quarry near Saint-Laon, Middle Callovian, Anceps Zone; B1-B3, Pseudaganides dimidiatus Marchand & Tintant, 1971, specimen 2023.PB.N126, la Grève quarry, Middle Callovian, Anceps Zone; C1-C3, Pseudaganides aganiticus (Schlotheim, 1820), specimen 2023.PB.N111, Montreuil-Bellay (Maine-et-Loire), Upper Callovian, Athleta Zone, Trezeense Subzone. *, end of the phragmocone. Scale bars: 1 cm.