Usage:
Trujillo Alto Limestone Member of Monacillo Formation (PR*)
Geologic age:
Late Cretaceous*
Type section, locality, area and/or origin of name:
Large limestone quarry on north side of Route 845 in the valley of Quebrada Cepero (Puerto Rico Meter Grid System 194,740 E.; 59,250 N.), Trujillo Alto, San Juan quadrangle, Puerto Rico (Pease, 1968).
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 ([ ]).