RT Journal Article
T1 A new scallop species, Syncyclonema goyi sp. nov. (Bivalvia, Pectinida, Entoliidae), from the Upper Cenomanian of West Portugal
A1 Callapez, Pedro Miguel
A1 Barroso Barcenilla, Fernando
A1 Berrocal Casero, Melani
A1 Brandão, José Manuel
A1 Comas Rengifo, María José
A1 Domingos, Rúben
A1 Gomes, Elsa
A1 Lopes, Fernando Carlos
A1 Mendes, Mário Miguel
A1 Segura, Manuel
AB 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.
PB MDPI
YR 2026
FD 2026-02-24
LK https://hdl.handle.net/20.500.14352/134439
UL https://hdl.handle.net/20.500.14352/134439
LA eng
NO Callapez, P. M., Barroso-Barcenilla, F., Berrocal-Casero, M., Brandão, J. M., Comas-Rengifo, M. J., Domingos, R., Gomes, E., Lopes, F. C., Mendes, M. M., Ozkaya De Juanas, S., Pereira, H. J., Perez-Cano, J., Pimentel, R. J., Santos, V. F. D., & Segura, M. (2026). A new scallop species, syncyclonema goyi sp. Nov. (Bivalvia, pectinida, entoliidae), from the upper cenomanian of west portugal. Geosciences, 16(3), 94. https://doi.org/10.3390/geosciences16030094
NO FCT
NO European Regional Development Fund
DS Docta Complutense
RD 30 abr 2026