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: Pavlomulina ranunculiformis S. Sym, R. Pienaar & M. Kawachi, in Kawachi et al. 2021Taxonomic rank: speciesType specimens: Holotype: Figure 1A. Cells embedded in resin specimens, deposited in the Natural Science Museum, Tsukuba, Japan, as the per- manent slide (TNS-AC-58979) and the block (TNS-AC-58979tb).Type sample (& lithostrat): The culture strain was established in 1991 and is deposited at the National Institute for Environmental Studies, Japan, as NIES-3900.Type age (chronostrat): Culture strainStandardised type level: 160_HOLOCENEType locality: Saeki Port, Oita, Japan (32.9777N 131.9036E).
Type repository: Tsukuba; Natural Science Museum, Tsukuba, Japan,Repository Country: JapanCurrent citation: Pavlomulina ranunculiformis S. Sym, R. Pienaar & M. Kawachi, in Kawachi et al. 2021
Original Description Diagnosis: With characters of class and genus. Solitary, slender tadpole-shaped cells with a tail, 40–55 mm long and 8–12 mm wide. Rounded cells, 20–25 mm long and 13–18 mm wide. Two equal heterodynamic flagella with knob scales, 30–40 mm long. The hapto- nema 18–22 mm long, non-coiling. Cells covered with layers of extrusome-like bodies termed pot-shaped scales (PSS), the mature encapsulated form in peripheral cytoplasm 0.3 mm wide and 0.5 mm long, and the released PSS 0.35 mm wide and 0.45 mm long subtended by a raised portion of the cell membrane. Four golden-brown chloroplasts with a projected pyrenoid. A striated, fibrous, rhizoplast-like structure connects the nucleus and posterior end of the cell. Etymology: ranunculiformis (L) –ranunculus meaning little frog ( = tadpole); formis meaning shaped
References:
Kawachi, M. et al. (2021). Rappemonads are haptophyte phytoplankton. Current Biology. 31(11): 2395-2403. gs