7.1.20

Saurópodos titanosaurios de la península ibérica en el 63rd Annual Meeting of the Palaeontological Association


Hace algunas semanas se presentó en el encuentro anual de la Palaeontological Association (PALASS 2019) celebrado en Valencia, una nueva comunicación sobre los titanosaurios de Lo Hueco titulada: "Titanosaurs from Lo Hueco (Campanian-Maastrichtian) reveal new information about the evolutionary history of European titanosaurs". En esta investigación se hace una puesta al día de la información ya existente sobre la historia evolutiva de los titanosaurios de Lo Hueco, y da la importancia clave en la comprensión de los titanosaurios del Cretácico Europeo y del Norte de África. En el trabajo se hace referencia a varios ejemplares relativamente completos hallados en el yacimiento de Lo Hueco (Fuentes, Cuenca) durante el año 2007. Algunos de estos ejemplares están siendo estudiados en detalle, y por eso esperamos hablaros de ellos muy prontito.

Mientras tanto, os dejamos con el resumen de la comunicación:

Lo Hueco (Cuenca, Spain) represents a Campanian–Maastrichtian multitaxic bonebed, with several partial titanosaurian skeletons, mostly articulated or with low dispersion. Their analysis is key to understanding the phylogeny of European and North African titanosaurs. Two taxa were identified in Lo Hueco, but recent works on axial remains are suggesting a higher diversity. Lohuecotitan pandafilandi (holotype HUE-EC-01) is the first established taxon, and its detailed description is revealing the presence of shared features, in the caudal series, with Paludititan. HUE-EC-02-to-05, HUE-EC-11 and HUE-EC-13 are six new specimens preserving articulated and well-preserved sections of the axial skeleton (almost complete in HUE-EC-02). They provide detailed information regarding morphological changes throughout the series (e.g.laminae patterns and pneumaticity), important for the codification of new characters. Furthermore, some specimens from Lo Hueco (e.g. HUE-EC-04) exhibit features traditionally considered as aeolosaurine synapomorphies, never reported previously in the Cretaceous of Europe. Our preliminary phylogenetic analyses recovered Lohuecotitan, HUE-EC-02 and Paludititan as possible members of Lirainosaurinae together with Lirainosaurus and Ampelosaurus. Lirainosaurinae is recovered as an early branching member of Saltasauridae and, in some analyses, as sister taxa of a clade including members of Colossosauria.

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