Dinosaur bonebed amber from an original swamp forest soil



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Álvarez Parra, Sergio and Pérez de la Fuente, Ricardo and Peñalver, Enrique and Barrón López, Eduardo and Alcalá, Luis and Pérez Cano, Jordi and Martín Closas, C. and Trabelsi, Khaled and Meléndez Hevia, Nieves and López del Valle, Rafael and Lozano, Rafael P. and Peris, David and Rodrigo, Ana and Sarto i Monteys, Víctor and Bueno Cebollada, Carlos A. and Menor Salvan, C. and Philippe, Marc and Sánchez García, Alba and Peña-Kairath, Constanza and Arillo, Antonio and Espílez, Eduardo and Mampel, Luis and Delclòs, Xavier (2021) Dinosaur bonebed amber from an original swamp forest soil. eLife . ISSN 2050084X

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Official URL: https://doi.org/10.7554/eLife.72477


Dinosaur bonebeds with amber content, yet scarce, offer a superior wealth and quality of data on ancient terrestrial ecosystems. However, the preserved palaeodiversity and/or taphonomic characteristics of these exceptional localities had hitherto limited their palaeobiological potential. Here, we describe the amber from the Lower Cretaceous dinosaur bonebed of Ariño (Teruel, Spain) using a multidisciplinary approach. Amber is found in both a root layer with amber strictly in situ and a litter layer mainly composed of aerial pieces unusually rich in bioinclusions, encompassing 11 insect orders, arachnids, and a few plant and vertebrate remains, including a feather. Additional palaeontological data—charophytes, palynomorphs, ostracods— are provided. Ariño arguably represents the most prolific and palaeobiologically diverse locality in which fossiliferous amber and a dinosaur bonebed have been found in association, and the only one known where the vast majority of the palaeontological assemblage suffered no or low-grade pre-burial transport. This has unlocked unprecedentedly complete and reliable palaeoecological data out of two complementary windows of preservation—the bonebed and the amber—from the same site.

Item Type:Article
Subjects:Sciences > Geology > Paleontology
ID Code:69531
Deposited On:12 Jan 2022 19:14
Last Modified:13 Jan 2022 08:14

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