The Cipero Marl is a geologic formation in Trinidad and Tobago. It preserves fossils dating back to the Early Oligocene to Burdigalian period.Cipero Marl at Fossilworks.org
See also List of fossiliferous stratigraphic units in Trinidad and Tobago
References
Further reading R. M. Stainforth. 1948. Description, correlation, and paleoecology of Tertiary Cipero Marl, Trinidad, BWI. Bulletin of the American Association of Petroleum Geologists 32(7):1292-1330