| Armuelles Formation Stratigraphic range: Early Pleistocene | |
|---|---|
| Type | Formation |
| Unit of | Charco Azul Group |
| Overlies | Penita & Charco Azul Formations |
| Lithology | |
| Primary | Siltstone |
| Other | Sandstone, conglomerate |
| Location | |
| Region | Limón Province Chiriquí Province |
| Country |  Costa Rica  Panama |
| Type section | |
| Named for | Puerto Armuelles |
The Armuelles Formation is a geologic formation in Costa Rica and Panama. It preserves fossils. [1]
Puerto Armuelles is a city and corregimiento on Panama's Pacific coast in western Chiriquí Province next to Costa Rica. It is the seat of the Barú District. Puerto Armuelles is the second-largest city in Chiriqui province with a population near 25,000 and has two different types of deep-water ports, one for bananas and one for oil.
The Penita Formation is a geologic formation in Costa Rica. It preserves fossils dating back to the Neogene period.
The Moin Formation is a geologic formation in Costa Rica. It preserves fossils dating back to the Late Pliocene to Early Pleistocene period.
The Quebrada Chocolate Formation is a geologic formation in Costa Rica. It preserves fossils dating back to the Neogene period.
The Río Banano Formation is a geologic formation in Costa Rica of the Limón Group. It preserves fossils dating back to the Middle Miocene to Piacenzian period.
The Uscari Formation is a geologic formation in Costa Rica. It preserves fossils dating back to the Neogene period.
The Limónes Formation is a geologic formation in Costa Rica. It preserves fossils dating back to the Neogene period.
The Punta Judas Formation is a geologic formation in Costa Rica. It preserves fossils dating back to the Middle Miocene period.
The Cayo Agua Formation is a geologic formation in Panama. It preserves fossils dating back to the Pliocene period.
The Escudo de Veraguas Formation is a geologic formation in Panama. It preserves fossils dating back to the Piacenzian to Early Pleistocene period.
The Nancy Point Formation is a geologic formation in Panama. It preserves fossils dating back to the Miocene period.
Charco Azul Formation is a geologic formation of the Charco Azul Group in western Panama and southeastern Costa Rica. It preserves gastropod fossils dating back to the Pliocene period.
The Tobabe Formation is a geologic formation in Panama. The conglomerates and sandstones preserve fossils dating back to the Messinian period.
The Isla Colón Formation is an Early Pleistocene geologic formation in the Bocas del Toro Province of northwestern Panama. It preserves coral fossils. The formation, part of the Bocas del Toro Group, comprises limestones and sandstones deposited in a reefal environment.
The Swan Cay Formation is a geologic formation in Panama. It preserves fossils.
The Charco Azul Group is a geologic group in southeastern Costa Rica and western Panama. The group comprises the Armuelles, Penita and Charco Azul Formations and preserves fossils.
The Limón Group is a geologic group in Costa Rica. It preserves fossils dating back to the Late Miocene to Early Pleistocene period.
The Jama Formation is a Pliocene to Early Pleistocene geologic formation in Ecuador. The claystones and sandstones were deposited in an coastal environment. The age of the Jama Formation is constrained by 40Ar/39Ar dating of tephra beds. The formation is correlated to the Charco Azul Formation of western Panama and southeastern Costa Rica.
The Canoa Formation is a Piacenzian to Calabrian geologic formation in Ecuador. The sandstones were deposited in a coastal environment. The formation is correlated to the Charco Azul Formation of western Panama and southeastern Costa Rica.
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