Usage:
Manicaboa Formation (PR*-local)
Recognized in southwestern part of Ciales quadrangle.
Geologic age:
Late Cretaceous (Campanian to Maastrichtian?)*
Type section, locality, area and/or origin of name:
Named from exposures along Rio Toro Negro east and west of the mouth of Quebrada Manicaboa. Restricted mainly to southwest quarter of Ciales quadrangle, north-central Puerto Rico (Berryhill, 1965).
AAPG geologic province:
Caribbean region*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).