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Article . 1988 . Peer-reviewed
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An Early Cretaceous faunal and floral continental assemblage:Las Hoyas fossil site (Cuenca, Spain)

Authors: Jiménez Fuentes, Emiliano; Sanz, José Luis; Wenz, Sylvie; Yebenes, Alfonso; Estes, Richard; Martínez-Delclòs, Xavier; Diéguez, Carmen; +3 Authors

An Early Cretaceous faunal and floral continental assemblage:Las Hoyas fossil site (Cuenca, Spain)

Abstract

[FR] Les couches à fossiles de Las Hoyas (province deCuenca, Espagne) sont composées de calcaires d'âge Hauterivien supérieur — Barrémien inférieur, probablement) de milieu lacustre. Le principal faciès fossilifère est fait de calcaires laminés qui proviennent d'eaux profondes anoxiques. L'assemblage floral et faunique est similaire à celui du Montsech (prov. de Lérida, Espagne), avec des divergences surtout dans les insectes et quelques tétrapodes. Les invertébrés benthoniques sont rares. La plupart des invertébrés sont des arthropodes: trois crustacés et une entomofaune relativement diversifiée. La faune de vertébrés la plus importante est composée par des poissons tant en nombre d'échantillons qu'en diversité (13 taxa différents). Parmi les tétrapodes, le plus abondant est un nouveau genre de Caudata. Les reptiles sont représentés par une tortue, un petit lézard et un crocodile atoposauride. Finalement, un nouvel oiseau est reconnu dans Las Hoyas, avec une position phylogénétique intermédiaire entre Archaeopteryx et les Ornithurae.

[EN] The fossiliferous beds of Las Hoyas (province ofCuenca, Spain) are composed of limestones (probably Late Hauterivian). The main fossiliferous facies consists of laminated limestone from a lake-basin plain with bottom waters perennially anoxic. The floral and faunal assemblage is similar to that of Montsech (prov. of Lérida, Spain), with divergences especially in the insects and some tetrapods. Bottom-dwelling invertebrates are scarce. Most of invertebrates are arthropods: three crustaceans and a relatively diversified entomofauna. The fishes are the main component of the vertebrate fauna both in number of individuals and diversity (13 different taxa). Among tetrapods the most abundant is a new genus of Caudata. Reptiles are represented by a chelonian, a little lizard and an atoposaurid crocodile. Finally, a new bird is reported from Las Hoyas, with an intermediate phylogenetic position between Archaeopteryx and Ornithurae.

The excavations in Las Hoyas have been supported by funds from the "Conserjeria de Educación y Cultura. Junta de Comunidades de Castilla-La Mancha".

Peer reviewed

Country
Spain
Keywords

Lacertilia, Oiseaux, Caudata, Insecta, Milieu Lacustre, Crocodilia, Megaflora, Chelonia, The Hoyas (Cuenca, Spain), F?siles, Crocodylia, Crustacea, Lower Cretaceous, Lacustrine Environment, 2416 Paleontolog?a, Cretácito, 2506 Geolog?a, Espagne, Las Hoyas (Cuenca, España), Fishes, Cret?cito, Poissons, 2416 Paleontología, Crétacé Inférieur, Mégaflore, Fauna, Flora, Spain, 2506 Geología, Fósiles, Las Hoyas (Cuenca, Espa?a), Aves

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selected citations
These citations are derived from selected sources.
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).
BIP!Citations provided by BIP!
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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60
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