FIG. 1 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. 1. — Geographical map reporting the position of the localities that provided specimens of Antaganides n. gen. and Pseudaganides Spath, 1927: 1, Buffevent quarry; 2, Niort; 3, Aiffres; 4, Trotte-buie quarry; 5, A83 highway trench at Viaduc de l'Égray; 6, Les Lucs (Échiré); 7, Chaban-de-Chauray; 8, La Crèche; 9, Salles; 10, Bougon; 11, Les Hauts-de-Rochefort quarry; 12, Les Maisons-Blanches; 13, La Grève quarry near Saint-Laon; 14, Montreuil-Bellay.