The Lower Pliocene marine gastropods of Santa Maria Island, Azores: Taxonomy and palaeobiogeographic implications Author Sacchetti, Claudia 0000-0002-3225-3139 claudiasacc@icloud.com Author Landau, Bernard 0000-0002-7768-8494 bernardmlandau@gmail.com Author Ávila, Sérgio P. 0000-0002-3225-3139 claudiasacc@icloud.com text Zootaxa 2023 2023-05-24 5295 1 1 150 http://dx.doi.org/10.11646/zootaxa.5295.1.1 journal article 53396 10.11646/zootaxa.5295.1.1 82286fdc-a858-447c-9980-da2e8985d19c 1175-5326 7965273 F3A52660-70B8-439F-A7A0-F45ADC975EA5 Schilderia utriculata ( Lamarck, 1810 ) ? Plate 3 G 1 -G 2 * Cypraea utriculata Lamarck 1810: 105 , no. 4. Cypraea physis Brocchi 1814: 284 , pl. 2, fig. 3. Cypraea physis Brocchi − Fontannes 1880: 108, pl. 7, fig. 5a, 5b. Zonaria utriculata (Lk.) — Sacco 1894: 26 , pl. 2, figs. 28-32. Zonaria utriculata var. apyriformis Sacco 1894: 28 , pl. 2, fig. 29. Cypraea ( Adusta ) physis Br. — Cerulli-Irelli 1911: 269 , pl. 26, figs. 8-10. Schilderia utriculata utriculata ( Lamarck, 1810 ) — Malatesta 1960: 115 , pl. 6, fig. 6. Schilderia utriculata ( Lamarck, 1810 ) — Pavia & Demagistris 1970: 134 , pl. 1, fig. 2, pl. 2, fig. 4. Cypraea physis Brocchi, 1814 — Pinna & Spezia 1978: 139 , pl. 23, fig. 2, 2a. Schilderia utriculata (Lk.) − Caprotti 1976: 9 , pl. 11, fig. 9. Schilderia utricolata ( Lamarck 1810 ) —Inzani 1985: 34, pl. 4, figs. 1-3. Schilderia utricolata ( Lamarck, 1810 ) − Doneddu & Manunza 1987: 317 , 318, 1 unnumb. text fig. [spelling error]. Schilderia utricolata ( Lamarck, 1810 ) − Doneddu & Manunza 1989: 72 [spelling error]. Schilderia utricolata ( Lamarck, 1810 ) − Damarco 1992: 80 , 4 unumb. text figs. [spelling error]. Schilderia utricolata ( Lamarck, 1810 ) − Inzani 1995: 44 , pl. 2, figs. 1-5 [spelling error]. Schilderia utriculata apyriformis ( Sacco, 1894 ) — Fehse 2001 c: 14, 1 unnumb. text fig. Schilderia utriculata ( Lamarck, 1810 ) — Fehse 2004: 7 , pl.6, figs. 2, 4, 6, pl. 7, figs. 1, 3, 5. Schilderia utriculata ( Lamarck, 1810 ) — Landau & Fehse 2004: 7 , pl. 5, fig. 9, pl. 6, figs. 1-3. Schilderia utriculata ( Lamarck, 1810 ) —Chirli 2008: 27, pl. 10, figs. 7-16. Schilderia utriculata ( Lamarck, 1810 ) — Sosso & Dell’Angelo 2010: 25 , 34, unumbered fig. third row right. non Cypraea physis ( Brocchi, 1814 ) − Delongueville & Scaillet 1987: 34 [= Schilderia achatidea ( Sowerby, 1837 ) ]. Santa Maria material examined. Maximum height 24.0 mm, width 15.0 mm. DBUA-F 869-2 (1) , DBUA-F 867 (1) , Ponta dos Cedros ; DBUA-F 1295 -D (1), Malbusca (west cave); DBUA-F 161-10 (1) , Pedreira do Campo ; one specimen from LNEG collection (unnumbered), unknown locality, Santa Maria Island , Azores , Touril Complex , Lower Pliocene . Description. Azorean material too incomplete for description. See Landau & Fehse (2004: 8) . Discussion. The best preserved specimen is an unnumbered complete adult in the LNEG collection, photographed by one of us ( August 2012 , SPA). Unfortunately, the specimen is slightly rotated on apertural view, and the photograph out of focus on dorsal view. On a subsequent visit to rephotograph the specimen it could no longer be found ( May 2022 , CS). The other Azorean specimens consist of fragments and internal moulds. Schilderia flavicula ( Lamarck, 1810 ) and Schilderia garonettii Fehse, 2004 , have a more elongated shell. Zonaria porcellus ( Brocchi, 1814 ) is much larger with a more produced anterior extremity. Schilderia utriculata is a typically Mediterranean Pliocene species that survived into the early Pleistocene before becoming extinct. This would be the first Atlantic record for the species. Distribution. Lower Pliocene:?Atlantic, Santa Maria Island, Azores (this paper); central Mediterranean, Italy (Chirli 2008; Sosso & Dell’Angelo 2010 ). Upper Pliocene: western Mediterranean, Estepona Basin, Spain ( Landau & Fehse 2004 ); central Mediterranean, Italy ( Sacco 1894 ; Pavia & Demagistris 1970 ; Inzani 1985; Fehse 2001 c, 2004), Cyprus , Algeria (Inzani 1985). Lower Pleistocene: central Mediterranean, Italy ( Cerulli-Irelli 1911 ; Malatesta 1960 ).