
The Boca de Serpiente Formation is a geologic formation in Trinidad and Tobago. The limestones stained red with hematite, preserve fossils dating back to the Priabonian period.

The Brasso Formation is a geologic formation in Trinidad and Tobago. It preserves fossils dating back to the Early Eocene to Serravallian period.

The Cipero Marl is a geologic formation in Trinidad and Tobago. It preserves fossils dating back to the Early Oligocene to Burdigalian period.

The Lizard Springs Formation is a geologic formation in Trinidad and Tobago. It preserves fossils dating back to the Paleocene to Early Eocene period.

The Morne Diablo Limestone is a geologic formation in Morne Diablo, Trinidad and Tobago. It preserves fossils dating back to the Oligocene period. The formation is laterally equivalent to the Cipero Marl and San Fernando Formation.

The Nariva Formation is a geologic formation in Trinidad and Tobago. It preserves fossils dating back to the Paleogene period.

The Soldado Formation is a geologic formation in Trinidad and Tobago. It preserves fossils dating back to the Thanetian to Bartonian period.