Original descriptions of taxa. For coccolithophores, and many calcispheres, these are pages from the Farinacci & Howe 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 originally compiled by Prof A. Farinacci 1969-1989, since 2000 it has been updated and extended by Richard Howe - see The Farinacci and Howe Catalog - an Introduction.
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Citation: Papposphaera thomsenii Norris 1983Rank: SpeciesLanguage: ENType age (chronostrat): RecentType locality: Indian OceanType repository: Durban, Univ of Natal Dept of Botany ? (this is where Norris was based)Repository Country: South AfricaFarinacci catalog page (& compiler): 12173Current citation: Papposphaera thomsenii Norris, 1983
Original Description Cells comprised of styliform pappoliths, all having approximately the same structure. Coccolith processes are up to approximately 6 p.m long. 5 p.m being the length of the hollow process shaft and 1 p.m being the upright distal elements. The 4 distal elements on the process are cuneiform [= wedge-shaped - JRY] with rounded disttal edges, together forming an infundibuliform [= cone-shaped - JRY] appendage. Coccolith basal disc circular in outline, having a rim of 16 upright, chevron-shaped elements. A row of low, small, triangular to rectangular elements lies at the base of these elements, the obtuse angle at the suture between the upright elements. Central area mostly open but crossed by four rows of rectangular elements that form a buttress at the base of the process. Entire coccospheres and living cells were not observed. Collected within the gut of a salp, surface sample, Station 132D (I.I.O.E., Anton Bruun).
Norris, R. E. (1983). The family position of Papposphaera Tangen and Pappomonas Manton & Oates (Prymnesiophyceae) with records from the Indian Ocean. Phycologia. 22(2): 161-169. gs
Papposphaera thomsenii: Catalog entry compiled by Anna Farinacci. Viewed: 1-10-2023