Usage:
Rio Maton Limestone Member of Robles Formation (PR*)
Geologic age:
late Early Cretaceous (Albian)*
Type section, locality, area and/or origin of name:
Just west of Highway 1, 2.7 km S. 65 deg. W. of Cayey Plaza, Cayey quadrangle, Puerto Rico. Named from Rio Maton (Berryhill and Glover, 1960).
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 ([ ]).