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Las Hoyas Unit 3 (MCCM collection) (Cretaceous of Spain)

Where: Cuenca, Spain (40.1° N, 1.9° W: paleocoordinates 30.5° N, 8.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: La Huérguina Formation, Late/Upper Barremian (130.0 - 125.5 Ma)

• also called "Calizas de La Huérgina Formation" or "La Huérgina Limestones Formations"

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; limestone and packstone

• shallow to deep lacustrine facies; "produced in the context of a continental (freshwater) subtropical, seasonal summer wet, carbonate wetland that overlay a low-relief karstic terrain. The wetland was drained by carbonate-rich freshwater and comprised a typical environmental mosaic of swampy plains, ponds, lakes, ephemeral channels and sloughs."
• Limestone with laminates; three facies described: Massive limestone, packstones with peloids and sand-sized fragments of Charophyte stems. Occasionally, in the base of these beds, levels of gastropodal wackestones appear; Flaggy limestones, sometimes nodular. Ostracodal mudstones with occasional thick laminations, laterally grading to confolute laminations; Laminated limestones, mudstones with laminations containing abundant fossils. Laminae are very continuous laterally

Size classes: macrofossils, mesofossils

Preservation: adpression, trace, soft parts

Collection methods: quarrying, surface (in situ),

Primary reference: J. L. Sanz, S. Wenz, A. Yebenes, R. Estes, X. Martinez-Delclos, E. Jiminez-Fuentes, C. Dieguez, A. D. Buscalioni, L. J. Barbadillo and L. Via. 1988. An Early Cretaceous faunal and floral continental assemblage: Las Hoyas fossil site (Cuenca, Spain). Géobios 21(5):611-635 [J. Alroy/E. Leckey/J. Alroy] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 28006: authorized by John Alroy, entered by Erin Leckey on 20.01.2003, edited by Roger Benson, Matthew Carrano, John Alroy, Richard Butler, Matthew Oreska, Jered Karr, Matthew Clapham, Philip Mannion, Jonathan Tennant and Mark Bell

Creative Commons license: CC BY (attribution)