type specimen holotype Neogene Pliocene East Coast FEU-1024116
|  | identified by scientist Quaternary Holocene recent Iberian Peninsula tidal marshes in North. Portugal FEU-1011335
|  | identified by scientist Quaternary Holocene recent Iberian Peninsula tidal marshes in North. Portugal FEU-1011336
|  | identified by scientist Quaternary Holocene recent Greater North Sea unknown FEU-1023423
|  | identified by M. Hesemann Quaternary Holocene recent Greater North Sea Helgoland off Nordstrand FEU-1023880
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identified by M. Hesemann Quaternary Holocene recent Greater North Sea Helgoland off Nordstrand FEU-1023881
|  | identified by M. Hesemann Quaternary Holocene recent Greater North Sea Helgoland off Nordstrand FEU-1023882
|  | identified by M. Hesemann Quaternary Holocene recent Greater North Sea Helgoland off Nordstrand FEU-1023883
|  | identified by M. Hesemann Quaternary Holocene recent Greater North Sea Helgoland off Nordstrand FEU-1023884
|  | identified by M. Hesemann Quaternary Holocene recent Greater North Sea Helgoland off Nordstrand FEU-1023885
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