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
Citation: Chrysochromulina inornamenta Wujek&Gardiner 1985Taxonomic rank: speciesType specimens: Type: Fig. 2,Standardised type level: 160_HOLOCENEType locality: Collected from Lake Brooker, Hillsborough County, FloridaFarinacci catalog page (& compiler): n/a Current citation: Chrysochromulina inornamenta Wujek and Gardiner 1985
Original Description The cell (Fig. 1) is spherical to ovate, 6-10 µm diameter or long. Two equal or subequal flagella, 18-24 µm long and ahaptonema 8-14 µm long is anteriorly inserted. Chromatophores usually two, parietal and lobed; pyrenoid not observed; stigma present. A large contractile vacuole is near the base of the flagella. At posterior end of the cell is a food vacuole. The cell body is covered with delicate organic scales of only one type: oval scales (Fig. 2; 0.26-0.32 µm long; 0.15-0.20 µm wide) with no sculpturing or fine concentric lines or radiating ridges; upturned rim present. Etymology: The epithet “inornamenta" was chosen because of the lack of sculpturing or fine concentric lines or radiating ridges. Extra details from original publication Remarks: Chrysochromulina inornamenta differs greatly from the other three described freshwater species of the genus in that it possesses scales with no apparent radiating ridges or concentric lines. It also lacks the spined scales present in Chrysochromulina breviturrita Nicholls and C. laurentiana Kling. It is similar to Chrysochromulina parva Lackey in lacking spined scales; the scales of C. parva, however, possess patterns.
References:
Wujek, D. E. & Gardiner, W. E. (1985). Chrysophyceae (Mallomonadaceae) from Florida. II. New species of Paraphysomonas and the prymnesiophyte Chrysochromulina. Florida Scientist. 48: 59-63. gs
Chrysochromulina inornamenta: Catalog entry compiled by Jeremy Young. Viewed: 17-2-2025