Taxon | Age | Occurrence |
---|---|---|
G. fraasi | Middle–Late Eocene | Egypt, Spain, Hungary, Italy, ?Namibia |
G. spinosus | Late Eocene | Hungary |
G. berryi | Oligocene | USA (Mississippi) |
G. pugnax | Early Miocene | Java |
G. munieri | Middle–Late Miocene | Hungary, Austria, Malta |
G. persicus n. sp. | Middle–Late Miocene | Iran |
G. toulai | Late Miocene | Panama |
G. armatus (=G. motupore) | Pliocene–Recent | Vanuatu (fossil); Indian Ocean + West Pacific |
G. acanthochirus | Late Pleistocene–Recent | Jamaica (fossil); Caribbean (Recent) |
G. laurae | Recent | Red Sea |
G. sp. | Recent | Gulf of Mexico |