IRAVADIIDAE Thiele, 1928

Coan, Eugene V., Pacaud, Jean-Michel & Kabat, Alan R., 2024, Gérard-Paul Deshayes (1796 - 1875) and his taxa, Geodiversitas 46 (16), pp. 553-930 : 624

Family IRAVADIIDAE Thiele, 1928

fragilis , Lacuna – Deshayes, 1861-DescrCoqFoss: 375, 17, pl. 17, figs 25-27. — Type locality: Noailles. — Type age: Paleocene (Thanetian). —Type material: UCBL-EM 32456, syntype.— Current status: Antinodulus fragilis (Deshayes, 1861) ( Le Renard & Pacaud 1995: 102; Leroy et al. 2014: 24, pl. 32, fig. 3a-b).

praelonga , Lacuna – Deshayes, 1861-DescrCoqFoss: 377, 17, pl. 17, figs 10-12. — Type localities:Parnes & Liancourt-Saint-Pierre.— Type age: Eocene (Lutetian). — Type material:UCBL-EM 32450, syntype from Parnes. Nominal type species (OD) of Lacunoptyxis Cossmann, 1888 . However, Gougerot & Le Renard (1982: 25) showed that Cossmann had misidentified the type species. Lacuna praelonga of Deshayes is a Ceratia in the family Iravadiidae , whereas Cossmann actually used it in the sense of Odontostomia nisoides Cossmann, 1888 ( Pyramidellidae ). In accordance with ICZN Code Art.70.3.2, we here designate the taxonomic species involved in the Cossmann’s misidentified concept as the type species of Lacunoptyxis Cossmann, 1888 , which is probably identical to Odontostomia nisoides Cossmann, 1888 , also the type species (OD) of Nisostomia Cossmann, 1921 . Both genera are now regarded as junior synonyms of Ondina de Folin, 1870 . — Current status: Ceratia praelonga (Deshayes, 1861) ( Le Renard & Pacaud 1995: 99; Le Renard 1996: 92; Pacaud 2008: 54).