identified by scientist Quaternary Holocene recent off Brazil Challenger Station 120 FEU-1004594
| | identified by scientist Quaternary Holocene recent Canary Islands Challenger Station 85 FEU-1004595
| | identified by scientist Quaternary Holocene recent Maldives and off South West Indian Ocean FEU-1006402
| | identified by scientist Quaternary Holocene recent unknown FEU-1012636
| | identified by M. Hesemann Quaternary Holocene recent South of Iceland Reykjanes Ridge FEU-1018689
| |