48172 20210121114443.0 doi 10.4202/app.2012.0069 sideral 89289 ART-2015-89289 eng (orcid)0000-0002-7210-1033 Moreno-Azanza, M. Unusual theropod eggshells from the early cretaceous blesa formation of the Iberian Range, Spain 2015 Access copy available to the general public Unrestricted Trigonoolithus amoae oogen. et oosp. nov. is described on the basis of abundant eggshell fragments from the La Cantalera 1 site in the Early Cretaceous (early Barremian) Blesa Formation, Teruel Province, northern Spain. The surface ornamentation, the most diagnostic feature of the new oogenus, consists of closely spaced sub-triangular or rounded protuberances that have not previously been reported in any other ootaxon. The eggshells present three distinct layers, with a gradual transition between prismatic and mammillary layers, and a poorly developed external layer with progressive prismatic to external layer transition, a combination of characters that allows them to be assigned to Prismatoolithidae. Phylogenetic analyses based on oological characters place Trigonoolithus at the base of Prismatoolithidae. info:eu-repo/grantAgreement/ES/MINECO/BES-2008-005538 info:eu-repo/grantAgreement/ES/DGA/B064-08B info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 1.503 2015 PALEONTOLOGY 25 / 54 = 0.463 2015 Q2 T2 0.998 2015 Paleontology 2015 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0003-1732-9155 Canudo, J.I. Universidad de Zaragoza (orcid)0000-0002-8427-6199 Gasca, J.M. 2000 655 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Paleontología 59, 4 (2015), 843-854 Acta Palaeontol. Pol. ACTA PALAEONTOLOGICA POLONICA 0567-7920 1079135 http://zaguan.unizar.es/record/48172/files/texto_completo.pdf Versión publicada 112800 http://zaguan.unizar.es/record/48172/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:48172 articulos driver 2021-01-21-10:41:45 ARTICLE