Callapez, Pedro MiguelBarroso-Barcenilla, FernandoBerrocal-Casero, MelaniBrandão, José ManuelComas-Rengifo, Maria JoséDomingos, RúbenGomes, ElsaLopes, Fernando CarlosMendes, Mário MiguelOzkaya de Juanas, SenayPereira, Hélder JoséPerez-Cano, JordiPimentel, Ricardo JorgeSantos, Vanda Faria dosSegura, Manuel2026-04-272026-04-272026-032076-3263PURE: 161462550PURE UUID: 31e76076-4422-4965-bc2e-131be3cff004Scopus: 105034430720WOS: 001725443500001http://hdl.handle.net/10362/202583Copyright: © 2026 by the authors. Licensee MDPI, Basel, Switzerland.A new species of pectinid bivalve, Syncyclonema goyi sp. nov., is described in honour of Professor Antonio Goy, one of the leading stratigraphers who shaped Mesozoic studies in Iberia over the past half century. It represents one of the smaller fossil scallops currently known from the Upper Cretaceous of Europe, alongside a few boreal species previously assigned to the family Entoliidae. The type specimens have orbicular valves, almost smooth, with unequal auricles. The right valve is more convex and bears a well-marked paleal sinus. The sculpture of the shell is weak, exhibiting concentric growth lines and lamellae. However, nearly 90 very small, uniform radial striae are discernible beneath the outer shell layer. This species is frequent in open marine, fine-grained, inner shelf facies of the Tethyan West Portuguese Carbonate Platform, near the main localities of Coimbra, Tentúgal, and Condeixa-a-Nova, in the Baixo Mondego region of West Portugal. It mostly occurs in the upper Cenomanian beds of the Trouxemil Formation, with Euomphaloceras septemseriatum and Vascoceratidae ammonites.6456688engCenomanianEntoliidaepalaeoecologyPteriomorphataxonomyUpper CretaceousWest IberiaGeneral Earth and Planetary SciencesSDG 14 - Life Below Waterjournal article10.3390/geosciences16030094https://www.scopus.com/pages/publications/105034430720