No current usage.
(†Mayaguez Group (PR) abandoned.)
Late Cretaceous
Type area: comprises most of the rocks in southwestern Puerto Rico. Named from Mayaguez map area, Puerto Rico (Mattson, 1958, 1960).
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 ([ ]).