Usage:
Rio Indio Limestone Member of Cibao Formation (PR*)
Geologic age:
Tertiary (late Oligocene to early Miocene)*
Type section, locality, area and/or origin of name:
Type locality: roadcut on the west side of Highway 645, just west of the bridge over the Rio Indio, 7.6 km south of Vega Baja (Puerto Rico Meter Grid System 156,340 E.; 60,280 N.), Manati quadrangle, Puerto Rico (Monroe, 1962).
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 ([ ]).