dc.creatorGallina, Pablo Ariel
dc.creatorApesteguía, Sebastián
dc.creatorCanale, Juan Ignacio
dc.creatorHaluza, Alejandro
dc.date.accessioned2020-11-17T13:37:37Z
dc.date.accessioned2022-10-14T23:56:36Z
dc.date.available2020-11-17T13:37:37Z
dc.date.available2022-10-14T23:56:36Z
dc.date.created2020-11-17T13:37:37Z
dc.date.issued2019-02
dc.identifierGallina, Pablo Ariel; Apesteguía, Sebastián; Canale, Juan Ignacio; Haluza, Alejandro; A new long-spined dinosaur from Patagonia sheds light on sauropod defense system; Nature Publishing Group; Scientific Reports; 9; 1; 2-2019; 1-10
dc.identifier2045-2322
dc.identifierhttp://hdl.handle.net/11336/118503
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4321976
dc.description.abstractDicraeosaurids are a group of sauropod dinosaurs characterized by a distinctive vertebral column with paired, long, neural spines, present in an extreme fashion in the South American form Amargasaurus cazaui. This distinctive morphology has been interpreted as a support structure for a thermoregulatory sail, a padded crest for display, a dorsal hump acting as fat reservoir, and even as inner cores for dorsal horns. Other inferred functions (if any) of this structure were related to sexual display and/or defense strategies. Here we describe a new dicraeosaurid sauropod, Bajadasaurus pronuspinax gen. et sp. nov., from Patagonia which preserves the most complete skull of the group and has extremely elongate bifid cervical neural spines that point permanently forward, irrespective of the neck position. Although much shorter versions of this neural spine configuration were already recorded for other dicraeosaurid taxa, the long, anteriorly bent spines of this new dinosaur support the hypothesis that these elongate spines of dicraeosaurid sauropods served as passive defense structures.
dc.languageeng
dc.publisherNature Publishing Group
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41598-018-37943-3
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1038/s41598-018-37943-3
dc.rightshttps://creativecommons.org/licenses/by/2.5/ar/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectdiplodocoidea
dc.subjectcranial anatomy
dc.subjectsauropoda
dc.subjectdinosauria
dc.titleA new long-spined dinosaur from Patagonia sheds light on sauropod defense system
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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