Estudio estratigráfico y de facies del yacimiento de icnitas de dinosaurios Sol de la Pita 1 en el Cretácico Inferior de la Cuenca de Cameros (Préjano, La Rioja, España)

J. Hernán; J. J. Moratalla

doi:10.21701/bolgeomin.125.4.002

Autores/as

J. Hernán Escuela Técnica Superior de Ingenieros de Minas y Energía de Madrid, Universidad Politécnica de Madrid
J. J. Moratalla Museo Geominero, Instituto Geológico y Minero de España

DOI:

https://doi.org/10.21701/bolgeomin.125.4.002

Palabras clave:

Cretácico, Cuenca de Cameros, Dinosauria, España, estratigrafía, icnología, La Rioja, litofacies

Resumen

Los sedimentos estudiados, en su mayor parte de naturaleza carbonatada, pertenecen al Grupo Enciso (Secuencia Deposicional 7 de edad Barremiense superior—Aptiense inferior). Las facies y las asociaciones de facies presentes en la columna estratigráfica de Sol de la Pita (Préjano) sugieren la presencia de un medio lacustre carbonatado. Las huellas fósiles se encuentran mayoritariamente aisladas y han sido producidas por dinosaurios terópodos, ornitópodos y saurópodos. Estos últimos están representados solamente por la impresión de una huella de mano cuya morfología sugiere que su autor pertenecía al clado Titanosauriformes. Aunque modesto en extensión y en número de icnitas, Sol de la Pita 1 es un ejemplo muy interesante de la icno-diversidad dinosauriana típica de los ecosistemas continentales del Cretácico de la Cuenca de Cameros.

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