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 Burica Sandstone is a geologic formation in Costa Rica. It preserves fossils dating back to the Neogene period.
The Tobabe Formation is a geologic formation in Panama. The conglomerates and sandstones preserve fossils dating back to the Messinian period.
The Barra Honda Formation is a geologic formation in Costa Rica. It preserves fossils dating back to the Paleogene period.
The Armuelles Formation is a geologic formation in Costa Rica and Panama. It preserves fossils.
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 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.
Leucosyrinx nicoya is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
The Jama Formation is a Pliocene to Early Pleistocene geological formation in Ecuador. The claystones and sandstones were deposited in a 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.
The Esmeraldas Formation is an Early Pliocene geologic formation of the Borbón Basin in northwestern Ecuador.
The Angostura Formation is a Late Miocene geologic formation of the Borbón Basin in northwestern Ecuador.
Costa Rica 
Panama 
