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Article . 2019 . Peer-reviewed
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DIGITAL.CSIC
Article . 2020
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A palaeornithological assemblage from the early Pliocene of the Mediterranean island of Mallorca: Raptorial birds as bioaccumulators at Na Burguesa-1

Authors: Enric Torres-Roig; Anna Díaz; Pere Bover; Josep Antoni Alcover;

A palaeornithological assemblage from the early Pliocene of the Mediterranean island of Mallorca: Raptorial birds as bioaccumulators at Na Burguesa-1

Abstract

[FR] Un assemblage paléo-ornithologique du début du Pliocène de Majorque (îles Baléares) est documenté à partir de 583 os fossiles obtenus dans le gisement de Na Burguesa-1. Dix taxons différents ont été identifiés dans cet assemblage : deux Tytonidae, un Strigidae de petite taille, un Phasianidae, un Charadriiforme et au moins cinq Passeriformes. Les fossiles inclus dans les Tytonidae correspondent à une chouette effraie géante, Tyto sp. 1, de taille similaire à Tyto robusta, et à une deuxième chouette effraie, Tyto sp. 2, de taille similaire à celle de Tyto sanctialbani. Les Strigidae de petite taille sont attribuées à Otus sp., bien que certaines des phalanges pédales obtenues ne soient attribuées à ce genre que de manière provisoire. La présence de ces rapaces nocturnes et celle, prédominante, de restes de petits vertébrés (dont la taille varie entre environ ca. 8 g et presque 1 kg), avec leurs ossements pratiquement inaltérés, permet d’interpréter l’origine du gisement comme une accumulation dérivée de la prédation par ces strigiformes.

[EN] A palaeornithological assemblage from the early Pliocene of Mallorca (Balearic Islands) is documented on 583 fossil bones from Na Burguesa-1 site. Ten different taxa have been identified: two Tytonidae, one small-sized Strigidae, one Phasianidae, one Charadriiform, and at least five Passeriformes. The specimens included in the Tytonidae correspond to a giant Barn Owl, Tyto sp. 1, with size similar to Tyto robusta, and a second Barn Owl, Tyto sp. 2, similar in size to Tyto sanctialbani. The small-sized Strigidae is attributed to Otus sp., although some of the pedal phalanges obtained are included only tentatively in this genus. The presence of these nocturnal raptorial birds combined with the prevalence of small vertebrates (mainly ranging from ca. 8 g to almost 1 kg) with practically unaltered bones suggests that this deposit was originated by the accumulation of prey remains of these owls.

The breccias from NB-1 were discovered in 2012 by Dr. Damià Vicens and permission to collect the material granted by the land lords (Zaforteza family) and the General Direction of Heritage of the “Consell de Mallorca”. This paper is a contribution funded by the “Agencia Estatal de Investigación” (“Ministerio de Economía, Industria y Competitividad”)/”Fondo Europeo de Desarrollo Regional” (FEDER) through Research Project CGL2016-79795-R and by the “Consell de Mallorca” (“Ajuts per a la realització d’intervencions paleontològiques a l’illa de Mallorca per a l’any 2018”).

Country
Spain
Keywords

Oiseaux fossiles, Pliocene, Mallorca, Majorque, Pliocène, Tyto, Taphonomy, Fossil birds, Otus, Taphonomie

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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