type specimen holotype Cretaceous Upper Cretaceous Mexico and Middle America unknown FEU-1007688
| | identified by scientist Quaternary Holocene recent Coral Sea Challenger Station 185 FEU-1003639
| | identified by scientist Quaternary Holocene recent Sea of Japan and around Challenger Station 232 FEU-1003640
| | identified by scientist Quaternary Holocene recent Coral Sea Challenger Station 185 FEU-1003642
| | identified by scientist Quaternary Holocene recent unknown FEU-1011225
| |