Taxonomy:
Catalog entries: Chrysochromulina pachycylindra
Original description: Protoplast globose, ca. 8 µm diam. containing two plastids; flagellar length uncertain but not less than 20 µm with a haptonema shorter but able to coil. Scales dimorphic: cylinders on the outer scales up to 16 µm long x 0.5-0.7 µm wide, breaking readily transversely, thin-walled, slightly widened basally and each attached inframarginally to a flat, rimmed, base-plate; plate-scales of the underlayer very numerous, circular in outline, ca. 0.6-1.0 µm diam. but with a few smaller ovals, all rimmed, with an additional infra-marginal ridge conspicuously raised on the distal face and visible through the scale on the proximal face. Patterning on plate-scales and the base-plates of cylinders otherwise similar, consisting of radial ridges arranged in quadrants round a cruciform central thickening, visible from both surfaces but the distal surface of the rim apparently patternless.
Type images:
Geological Range:
Last occurrence (top): Extant. Data source:
First occurrence (base): within No known fossil record modern (0-0Ma, base in "Holocene" stage). Data source:
Manton, I., Oates, K. & Course, P. A. (1981). Cylinder-scales in marine flagellates from the genus Chrysochromulina (Haptophyceae = Prymnesiophyceae) with a description of C. pachycylindra sp. nov. Journal of the Marine Biological Association of the United Kingdom. 61: 17-26. gsReferences:
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Chrysochromulina pachycylindra compiled by Jeremy R. Young viewed: 8-12-2023
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20106 Go to Archive.is to create a permanent copy of this page - citation notes |
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