Original descriptions of taxa - also emended descriptions for a few 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: Discoaster brouweri subsp. bipartitus Haq & Berggren 1978Taxonomic rank: sub-speciesLanguage: ENType age (chronostrat): Mid Miocene to Early PlioceneStandardised type level: 140_NEOGENEType locality: Atlantic OceanType repository: -Repository Country: USAFarinacci catalog page (& compiler): 11058
Combinations:
Discoaster brouweri subsp. bipartitus Haq & Berggren 1978 (basionym)
Editors' Notes The "isolated triplet" is D. triradiatus, these are indeed characteristic of N18 but are a separate morphotype not derived from D. brouweri
References:
Haq, B. U. & Berggren, W. A. (1978). Late Neogene calcareous plankton biochronology of the Rio Grande Rise (South Atlantic Ocean). Journal of Paleontology. 52: 1167-1194. gs
Discoaster brouweri bipartitus: Catalog entry compiled by Anna Farinacci. Viewed: 9-9-2026