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dc.contributor.authorPáramo Fonseca, María Eurídice-
dc.contributor.authorGómez Pérez, Marcela-
dc.contributor.authorNoé, Leslie F.-
dc.contributor.authorEtayo Serna, Fernando-
dc.date.accessioned2021-11-15T13:12:17Z-
dc.date.available2021-11-15T13:12:17Z-
dc.date.issued2016-03-28-
dc.identifier.urihttps://repositorio.accefyn.org.co/handle/001/915-
dc.description.abstractSe describe un nuevo género y especie de pliosáurido, Stenorhynchosaurus munozi, procedente de una de las secuencias de rocas del Cretácico Inferior más completas del mundo (en la región de Villa de Leiva, centro de Colombia). Stenorhynchosaurus exhibe una serie de características que lo diferencian de los demás géneros de pliosáuridos cretácicos: extremo anterior el vómer en vista ventral en posición posterior a la sutura palatal premaxilar-maxilar, contactando al proceso palatal del premaxilar al nivel del tercer alveolo maxilar; rostro angosto y alargado con lados rectos en vista dorsal; lagrimal formando el borde anterior y gran parte del borde ventral de la órbita y limitando ampliamente el maxilar anteriormente; cavidad inter-pterigoidea presente; narinas internas ubicadas entre el vómer y el maxilar, al nivel de los alvéolos 13 y 15; parte anterior del rostro y de la mandíbula sin expansión lateral o incremento marcado en el tamaño de los alvéolos funcionales; penúltimo alvéolo premaxilar ligeramente más grande que los adyacentes; alvéolos funcionales maxilares homodontes, el cuarto apenas más grande que los adyacentes; dentición dentaria homodonte; y epipodios extremadamente cortos. Con base en un análisis de caracteres filogenéticos, Stenorhynchosaurus corresponde con mayor seguridad a los cada vez más incluyentes Pliosauridae and Pliosauroidea, mientras la inferencia para referir Stenorhynchosaurus a Thalassophonea es más problemática, pero finalmente parece probable basada en caracteres compartidos con Pliosaurus y Brachaucheninae. Esta incertidumbre indica que Thalassophonea require de una redefinición rigurosa. Decir si Stenorhynchosaurus es un miembro del género Pliosaurus, por ahora exclusivamente jurásico, o de la subfamilia Brachaucheninae, es equívoco.spa
dc.description.abstractFrom one of the most complete Lower Cretaceous rock sequences in the world (in Villa de Leiva region, central Colombia), we describe a new genus and species of pliosaurid plesiosaur Stenorhynchosaurus munozi. Stenorhynchosaurus displays a series of features which differentiate it from all the other Cretaceous pliosaurid genera: the anterior of the vomer, in ventral view, posterior of the palatal premaxilla-maxilla suture, contacting the posterior palatal process of the premaxilla level with the third maxillary alveolus; rostrum narrow and elongated with straight sides in dorsal view; lacrimal forming the anterior border and greater part of the ventral border of the orbit and broadly borders the maxilla anteriorly; anterior interpterygoid vacuity present; internal nares located between vomer and maxilla at the level of 13th-15th maxillary alveoli; anterior of rostrum and mandible without lateral expansion or marked increase in size of the functional alveoli; penultimate premaxillary alveolus slightly larger than adjacent premaxillary alveoli; homodont maxillary functional alveoli, with fourth tooth positions very slightly enlarged with respect to the neighboring alveoli; homodont dentary dentition; and epipodials extremely short. Based on morphological analysis of phylogenetic characters, Stenorhynchosaurus most likely nests within the increasingly inclusive Pliosauridae and Pliosauroidea, however, as currently defined, firm inference for referral of Stenorhynchosaurus to Thalassophonea is much more problematic, but ultimately seems likely based on characters shared with Pliosaurus and Brachaucheninae. However, this uncertainty indicates Thalassophonea requires rigorous redefinition. As to whether Stenorhynchosaurus is a member of the currently exclusively Jurassic genus Pliosaurus, or the Cretaceous sub-family Brachaucheninae, remains equivocal.eng
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dc.publisherAcademia Colombiana de Ciencias Exactas, Físicas y Naturalesspa
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 Internationalspa
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dc.sourceRevista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturalesspa
dc.titleStenorhynchosaurus munozi, gen. et sp. nov. a new pliosaurid from the Upper Barremian (Lower Cretaceous) of Villa de Leiva, Colombia, South Americaspa
dc.typeArtículo de revistaspa
dcterms.audienceEstudiantes, Profesores, Comunidad científica colombianaspa
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dc.identifier.doihttps://doi.org/10.18257/raccefyn.239-
dc.subject.proposalPliosauridaespa
dc.subject.proposalPliosauridaeeng
dc.subject.proposalBarremianospa
dc.subject.proposalBarremianeng
dc.subject.proposalCretácico inferiorspa
dc.subject.proposalLower Cretaceouseng
dc.subject.proposalColombiaspa
dc.subject.proposalColombiaeng
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dc.relation.ispartofjournalRevista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturalesspa
dc.relation.citationvolume40spa
dc.relation.citationstartpage84spa
dc.relation.citationendpage103spa
dc.publisher.placeBogotá D.C., Colombiaspa
dc.contributor.corporatenameAcademia Colombiana de Ciencias Exactas, Físicas y Naturalesspa
dc.coverage.countryColombia-
dc.relation.citationissue154spa
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