Álvarez-Parra, SergioPérez-de la Fuente, RicardoPeñalver Mollá, EnriqueBarrón, EduardoAlcalá Martínez, LuisPérez Cano, JordiMartín-Closas, CarlesTrabelsi, KhaledMeléndez, NievesLópez del Valle, RafaelLozano, Rafael P.Peris Cerdán, DavidRodrigo, AnaSarto i Monteys, VíctorBueno-Cebollada, Carlos A.Menor-Salván, CésarPhilippe, MarcSánchez García, AlbaPeña-Kairath, ConstanzaArillo, AntonioEspílez, EduardoMampel, LuisDelclòs Martínez, Xavier2022-01-212022-01-212021-11-302050-084Xhttps://hdl.handle.net/2445/182540Dinosaur 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.46 p.application/pdfengcc-by (c) Álvarez-Parra, Sergio et al., 2021https://creativecommons.org/licenses/by/4.0/PaleoecologiaAmbrePaleontologiaInsectes fòssilsPaleoecologyAmberPaleontologyInsects fossilinfo:eu-repo/semantics/article7176962022-01-21info:eu-repo/semantics/openAccess