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.
Taxa are sorted alphabetically for simple browsing, or you can use search boxes at the top & bottom of the page
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Current identification:
Compiled data
Citation: Platychrysis moestrupii Grant et al. 2011Taxonomic rank: speciesType specimens: ISOTYPES: Figs 1–4. CULTURE LODGMENT: ANACC code CS-975, CSIRO, Hobart, Tasmania, Australia.Type locality: Stewart’s Bay, Tasmania, Australia (-43.12N; 147.85E).Farinacci catalog page (& compiler): n/a
Original Description Motile cells 50–65 µm x 20–25 µm, oblong to cylindrical, with a distinct rounded protuberance at posterior; two anterior golden brown plastids; two equal to subequal homodynamic flagella; one flexible noncoiling haptonema (8–10 µm) inserted subapically in shallow groove. Nonmotile benthic cells (50–65 µm), flattened, irregularly discoid, often closely associated with adjacent cells; haptonema and coiled flagella present. Scales either possessing upright spines on the scale rim or not; scales elliptical, 500 nm x 300 nm. Size: Motile cells 50–65 µm x 20–25 µm Etymology: This species is named in honour of Prof. Dr. Øjvind Moestrup for his many contributions to the field of phytoplankton taxonomy, systematics, ultrastructure and biology, including the haptophytes.
References:
Grant, B., Waller, R. F. & Wetherbee, R. (2011). Platychrysis moestrupii sp. nov. (Prymnesiophyceae): a new dimorphic, sand-dwelling haptophyte species from southeastern Australia. Phycologia. 50(6): 608-615. gs
Platychrysis moestrupii: Catalog entry compiled by Jeremy Young. Viewed: 17-2-2025