page_title: Allen Formation
hierarchical_section_title: Allen Formation
caption_attribution_description: Español: Formaciones Anacleto y Allen (Cretácico superior) en Auca Mahuida. English: Anacleto and Allen fms. (Upper Cretaceous) in Auca Mahuida, Neuquen, Argentina.
context_page_description: The Allen Formation is a geological formation in Argentina whose strata date back to the Late Cretaceous middle Campanian to early Maastrichtian. Dinosaur remains are among the fossils that have been recovered from the formation.
context_section_description: The Allen Formation is a geological formation in Argentina whose strata date back to the Late Cretaceous (middle Campanian to early Maastrichtian. Dinosaur remains are among the fossils that have been recovered from the formation.
caption: Outcrop of the Allen and Anacleto Formations at Auca Mahuida
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