Original descriptions of taxa. For coccolithophores, and many calcispheres, these are pages from the Catalog of Calcareous Nannofossils. In other cases (e.g. non-calcifying haptophytes) the data is directly compiled on this site. The "Catalogue of Calcareous Nannofossils" was compiled by Prof A. Farinacci 1969-1989 and updated by Richard Howe 2000-2016 - see also this page.
Taxa are sorted alphabetically for simple browsing, or you can use search boxes at the top & bottom of the page
 |  |  |  | Tansinius Filipescu & Hanganu 1960 = Ascidian spicules
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 |  |  |  | Tanzanella Lees 2007 = Tanzanella
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 |  | | | Tegulalithus Crux 1986 = Tegulalithus
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 |  |  |  | Tegumentum Thierstein in Roth & Thierstein 1972 = Tegumentum
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 |  |  |  | Teichorhabdus Wind & Wise 1976 = Teichorhabdus
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 |  |  |  | Tergestiella Kamptner 1941 = Tergestiella
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 |  |  |  | Tessellatolithus Haq 1968
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 |  |  |  | Tetralithoides Theodoridis 1984 = Tetralithoides
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 |  |  |  | Tetralithus Gardet 1955 = crystals
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 |  |  |  | Tetrapodorhabdus Black 1971 = Tetrapodorhabdus
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 |  |  |  | Thalassopappus Kamptner 1941 = Unidentifiable coccolithophore
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 |  |  |  | Thecatus Lees 2007 = Thecatus
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 |  |  |  | Thiersteinia Wise & Watkins, in Wise 1983 = Thiersteinia
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 |  |  |  | Thorosphaera Ostenfeld 1910 = Scyphosphaera
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 |  |  |  | Thurmannolithion GrĂ¼n & Zweili 1980 = Thurmannolithion
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 |  |  |  | Tiarolithus Kamptner 1958 = Calcidiscus
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 |  |  |  | Timorella Bown 1987 = Timorella
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 |  |  |  | Timorhabdus Kristan-Tollmann 1988 = Crepidolithus
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 |  |  |  | Tintinnabuliformis Varol 1991 = Tintinnabuliformis
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 |  |  |  | Tortolithus Crux 1982 = Tortolithus
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 |  |  |  | Toweius Hay & Mohler 1967 = Toweius
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 |  |  |  | Tranolithus Stover 1966 = Tranolithus
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 |  |  |  | Transversopontis Hay, Mohler & Wade 1966 = Pontosphaera
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 |  |  |  | Trapezopentus Wind & Cepek 1979 = Trapezopentus
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 |  |  |  | Tremalithus Kamptner 1948
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 |  |  |  | Tremamystron Hoffmann 1970 = Unidentifiable nannofossil
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 |  |  |  | Tretosestrum Wilcoxon 1972 = Reticulofenestra
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 |  |  |  | Tribrachiatus Shamrai, 1963 = Tribrachiatus
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 |  |  |  | Trigonaspsis Thomsen 1980 = Trigonaspis
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 |  |  |  | Triorbis Varol 1984
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 |  |  | | Tripinnalithus Young & Bown 2014 = Tripinnalithus
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 |  |  |  | Triquetrorhabdulus Martini 1965 = Triquetrorhabdulus
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 |  |  |  | Triscutum Dockerill 1987 = Triscutum
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 |  | | | Trochastrites Stradner 1961 = Rhomboaster
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 |  |  |  | Trochoaster Klumpp 1953 = Lithostromation
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 |  |  |  | Truncatoscaphus Rood, Hay & Barnard 1971 = Truncatoscaphus
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 |  | | | Truncodiscoaster Prins 1971 = Discoaster
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 |  |  |  | Tubirhabdus Prins 1969 emend. Goy in Goy et al. 1979 = Tubirhabdus
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| | | | Tubodiscaceae Bown & Rutledge in Young & Bown 1997
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 |  |  |  | Tubodiscus Thierstein 1973 = Tubodiscus
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 |  | | | Turbodiscoaster Prins 1971 = Discoaster
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 |  |  |  | Turrilithus Jordan et al., 1991 = Turrilithus
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 |  |  |  | Turrisphaera Manton, I., Sutherland, J. & Oates, K., 1976 = Papposphaera HOL
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