RT info:eu-repo/semantics/article
T1 Earliest Pragian (Early Devonian) corals and stromatoporoids from reefal settings in the Cantabrian Zone (N Spain)
A1 Fernández Martínez, Esperanza
A1 Fernández, Luis Pedro
A1 Méndez Bedia, Isabel
A1 Soto, Francisco
A1 Mistiaen, Bruno
A2 Paleontologia
K1 Paleontología
K1 Corales
K1 Corals
K1 Arrecifes
K1 Devónico
K1 Devonian
K1 Stromatoporoids
K1 Cordillera Cantábrica (España)
K1 Sedimentos (Geología)
K1 Reefs
K1 Estratigrafía
K1 Fósiles
AB The oldest reefal episode in the Cantabrian Zone (earliest Pragian) consists of small biostromal patch reefs, mainlybuilt by corals and stromatoporoids, and developed on a storm-dominated ramp. Four outcrops provide the stratigraphicframework in which these reef facies developed, and these permitted an interpretation of their depositionalsetting in terms of a relatively distal or protected shelf. We systematically describe three species of rugose corals,five species of tabulate corals, and six species of stromatoporoids. This fauna is allocated to three Pragian fossilassociations. Association 1 is mainly composed of massive tabulate corals and stromatoporoids. Association 2contains dominant branching rugose and tabulate corals. Finally, association 3 is represented by tiny massive tabulatecorals. Each association occurs at a specific location within a framework of high-frequency deepening upwardcycles, being related to a specific depositional setting. This mode of occurrence suggests that their developmentwas tuned by relative base-level oscillations, forming during rises that took the sea-bottom to relatively deep orsheltered conditions, with rare reworking by storm-related currents. Finally, a comparison of this reefal fauna withexamples of similar age from elsewhere is presented in order to explore their affinities.
PB Institut de Ciències de la Terra "Jaume Almera"
YR 2019
FD 2019-04-17
LK http://hdl.handle.net/10612/10326
UL http://hdl.handle.net/10612/10326
NO Geologica Acta: an international earth science journal, 2010, vol. 8, n. 3
NO p. 301-323
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 03-jun-2024