Usage:
Austinian Stage*
An Upper Cretaceous provincial stage of the Gulf and Atlantic Coastal Plains of the US.
Geologic age:
Late Cretaceous (Coniacian to early Campanian)*
Type section, locality, area and/or origin of name:
Not synopsized to date. Is equivalent to the type Austin chalk and its typical subdivisions (see Murray, 1961).
AAPG geologic province:
Atlantic Coast basin*
Anadarko basin*
Arkla basin*
East Texas basin*
Florida platform*
Gulf Coast basin*
Mid-Gulf Coast basin*
Ouachita folded belt*
South Georgia sedimentary province*
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 ([ ]).