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Santa Maria Mine, Ariño (AR-1) (Cretaceous of Spain)

Also known as Mina Santa Mariá

Where: Aragón, Spain (41.0° N, 0.6° W: paleocoordinates 28.9° N, 6.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lower Sedimentary Succession Member (Escucha Formation), Early/Lower Albian (112.6 - 109.0 Ma)

• Precisely at the base of the layers with coal, in a succession from Late Albian to Early Aptian. Biostratigraphy based on nannofossils, forams, dinoflagellates, and pollen.

•Bone concentrations AR-1/19, AR-1/48, AR-1/57, AR-1/58, AR-1/70

• bed-level stratigraphic resolution

Environment/lithology: delta plain; coal and pyritic, black, gray, green mudstone

• Oliete Geological sub-basin, Aragonese branch of the Iberian Range. Freshwater to brackish "swamp plain."
• "a dark olive-gray to olive-black mudstone that preserves a high percentage of fossil plant debris…there is a great amount of pyrite (iron sulfide)…"

Size classes: macrofossils, mesofossils, microfossils

Preservation: replaced with pyrite, coprolite

Collected in 2010–2011

Collection methods: bulk, quarrying, chemical, mechanical,

• Palaeontological Prospecting and Excavations in Ariño, Alloza and Andorra Municipalities (projects 201/ 2010 and 201/10-2011)

Primary reference: L. Alcalá, E. Espílez, L. Mampel, J. I. Kirkland, M. Ortiga, D. Rubio, A. González, D. Ayala, A. Cobos, R. Royo-Torres, F. Gascó and M. D. Pesquero. 2012. A new Lower Cretaceous vertebrate bonebed near Arino (Tereul, Aragon, Spain); found and managed in a joint collaboration between a mining company and a palaeontological park. Geoheritage 4:275-286 [P. Mannion/J. Tennant/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136754: authorized by Philip Mannion, entered by Jonathan Tennant on 04.12.2012, edited by Philip Mannion and Roger Benson

Creative Commons license: CC BY (attribution)