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 Family Triphoridae Gray, 1847 Triphorid s.l. Plate 2 I Cerithiopsis perversa Linné Mayer 1864: 67 . Santa Maria material examined. Maximum height 3.2 mm, width 1.3 mm. DBUA-F 471-5 (1), Ponta do Castelo, Santa Maria Island, Azores , Touril Complex, Lower Pliocene. Discussion. A single fragment of a triphorid species is present in the Santa Maria assemblages. It is missing the protoconch and neanic whorls so that the order of appearance of the spiral cords is difficult to assess. However, it seems that the middle cord might be the last to appear. Further classification is not possible. Distribution. Lower Pliocene: Atlantic, Santa Maria Island, Azores ( Mayer 1864 ).