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Morphological Attributes: Wallmaterial: hyaline Overall appearance: elongate Coiling: biserial Chamberform: triangular to trapezoid Aperture Position: basal Aperture Form: arcuate lunear arch, tooth, --, -- Sutures: depressed, curved, -- Ornamentation: --, striate, --, -- |
 identified by scientist Quaternary Holocene recent Gulf of Mexico Mississippi Delta |  identified by scientist Quaternary Holocene recent Yellow Sea Bohai Sea |  identified by scientist Quaternary Holocene recent Yellow Sea Bohai Sea |
 identified by scientist Quaternary Holocene recent Yellow Sea Bohai Sea |  identified by scientist Quaternary Holocene recent Mediterranean Sea Adriatic coast, central |  identified by scientist Quaternary Holocene recent Mediterranean Sea Venice Lagoon |
 identified by scientist Quaternary Holocene recent Mediterranean Sea Venice Lagoon |  identified by scientist Quaternary Pleistocene Tarantian Yellow Sea South Yellow Sea |  identified by scientist Quaternary Pleistocene Middle Pleistocene off Brazil Santos Basin |
 identified by M. Hesemann Quaternary Holocene recent Arabian Sea off Karachi |  identified by M. Hesemann Quaternary Holocene recent Arabian Sea off Karachi |  identified by M. Hesemann Quaternary Holocene recent Arabian Sea off Karachi |
 identified by M. Hesemann Quaternary Holocene recent Andaman Sea and Malacca St. Langkawi |  identified by M. Hesemann Quaternary Holocene North Africa Oued Miliane |  identified by M. Hesemann Quaternary Holocene recent Andaman Sea and Malacca St. Penang |
 identified by M. Hesemann Quaternary Holocene recent Caribbean off Panama |  identified by M. Hesemann Quaternary Holocene recent Caribbean off Panama |  identified by M. Hesemann Quaternary Holocene recent Caribbean off Panama |
 identified by M. Hesemann Quaternary Holocene recent Caribbean off Panama |  identified by M. Hesemann Quaternary Holocene recent Caribbean off Panama |  identified by M. Hesemann Quaternary Holocene recent Caribbean off Panama |