Gulfoceras is an extinct genus of rhinocerotids endemic to North America from the Miocene, living from 23.03 to 20.4 mya existing for approximately .
Taxonomy Gulfoceras was named by Albright (1999). Its type is Gulfoceras westfalli. It was assigned to Rhinocerotidae by Albright (1999).L. B. Albright. 1999. Ungulates of the Toledo Bend local fauna (late Arikareean, early Miocene), Texas Coastal Plain. Bulletin of the Florida Museum of Natural History, Biological Sciences 42(1):1-80
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