Al hilo del resumen que de manera preliminar presentaba los elementos del cráneo de un ornitópodo estiracosterno compatible con Iguanodon bernissartensis, localizado en el yacimiento MP-3, también en esta jornadas se presentó una comunicación que pretendía dar a conocer la vegetación presente en los ambientes por los que este ejemplar se movía. De este estudio se concluye que el ambiente en el que se depositaron los materiales que dieron lugar al yacimiento estaban dominados, desde el punto de vista florístico, por coníferas pertenecientes al grupo de las Cheirolepidiaceae, formas muy relacionadas durante el Cretácico Inferior con ambientes cálidos. Aquí va el resumen:
“The styracosternan dinosaur Iguanodon bernissartensis is one of the most widespread Ornithopoda representatives of the Early Cretaceous from Europe, having its southernmost contrasted record at the Arcillas de Morella Fm (Morella, NE Iberian Peninsula). The palynological studies have been recognized as a good method to provide palaeoecological and palaeoenvironmental data in other Iguanodon-bearing sites, as in the middle Barremian–early Aptian of Bernissart (Belgium). However, the palaeohabitat of these dinosaurs along Europe still has some uncertainties. This work is a palynostratigraphical study of a new locality (Palau 3 quarry) based on samples collected around the most complete non-articulated skeleton of Iguanodon bernissartensis in the Iberian Peninsula. The main objectives are to reconstruct the plant communities inhabited by this styracosternan at the most meridional part of its geographic range and the palynostratigraphical dating. The palaeopalynological assemblage is dominated by Cheirolepidiaceae pollen (mainly Classopollis) and, in less proportion, schizaeaceous spores. Cyatheaceae/Dicksoniaceae, Lycopodiaceae, and Matoniaceae representatives are also present. The Cheirolepidiaceae pollen would indicate a warm habitat, while the presence of Schizaeaceae and other spores suggest wet lowlands. The presence of freshwater algae such as Chomotriletes and Lecaniella is in tune with a low-energy freshwater environment with possibly water level fluctuations. However, the marine influence was also noted because of the occurrence of some dinoflagellate cysts. Regarding the palynological dating, the presence of some selected palynomorphs as the spores Cicatricosisporites abacus, Crybelosporites pannuceus, and Triporoletes incertus suggest a late Barremian–early Aptian age according to their biostratigraphic ranges.”
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Más información:
- Referencia: Rodríguez Barreiro, I., Santos, A., Villanueva-Amadoz, U., Gasulla, J. M., Escaso, F., Ortega, F., & Diez, J. B. (2022). Palynological assemblage of an Iguanodon bernissartensis bearing deposit from the Arcillas de Morella Formation (NE Iberian Peninsula). In: Blanco et al. (Eds.), Libro de Resúmenes de las XXXVII Jornadas SEP y V Congreso Ibérico de Paleontología. Palaeontological publications 2, 162..
- Imagen: Iván Rodríguez en labores de muestro para la realización de los estudios palinológicos.
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