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Article Dans Une Revue eLife Année : 2021

Dinosaur bonebed amber from an original swamp forest soil

Enrique Peñalver
Eduardo Barrón
Rafael Lozano
Ana Rodrigo
Carlos Bueno-Cebollada

Résumé

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.

Dates et versions

hal-03466734 , version 1 (06-12-2021)

Identifiants

Citer

Sergio Álvarez-Parra, Ricardo Pérez-de La Fuente, Enrique Peñalver, Eduardo Barrón, Luis Alcalá, et al.. Dinosaur bonebed amber from an original swamp forest soil. eLife, 2021, 10 (e72477), ⟨10.7554/eLife.72477⟩. ⟨hal-03466734⟩
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