Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
Dicrateria gilva | ||||
Dicrateria inornata No scales | ||||
![]() | ![]() | ![]() | ![]() | Dicrateria rotunda Bears two types of plate-like scales, with sparse radial ribs |
Dicrateria sp. Specimens which cannot be assigned to established species |
Taxonomy:
Original description: Cellula natante, solitaria, nuda, periplasto differentiae carente praedita; protoplasto rigidiore, formam praebente immutabilem; cellula sphaeroidi subovatave; deest sulcus; 2 flagellis, longitudine paribus, ex granulo basali distincto exsistentibus in parte cytoplasmatis hyalina sito; 2 chromatophoris magnis parietalibus crateriformibus fulvis contrapositis; nucleo mediocri pro- pius polum ilium sito ex quo exsisrunt flagella; cellula pabulum holophytica; nee oleo nee leucosino indigente; sine sexu propagatur fissione per gradum mobilem; cysto intra cellulam confecto; cystis sphaeroidibus subovatisque cum membrana externa laevi; non deest multiplicationis genus palmelloidem per gradum effectae.
Farinacci & Howe catalog pages: Dicrateria, Imantonia
Search data:
Lith size: 0->0µm; |
Geological Range:
Last occurrence (top): Extant. Data source: Total of ranges of the species in this database
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
Bendif, E. M., Probert, I, Schroeder, D. C. & de Vargas, C. (2013b). On the description of Tisochrysis lutea gen. nov. sp. nov. and Isochrysis nuda sp. nov. in the Isochrysidales, and the transfer of Dicrateria to the Prymnesiales (Haptophyta). Journal of Applied Phycology. 25: 1763-1776. gs Edvardsen, B., Eikrem, W., Green, J. C., Andersen, R. A., Moon-Van Der Staay, S. Y. & Medlin, L. K. (2000). Phylogenetic reconstructions of the Haptophyta inferred from 18S ribosomal DNA sequences and available morphological data. Phycologia. 39: 19-35. gs Green, J. C. & Pienaar, R. N. (1977). The taxonomy of the order Isochrysidales (Prymnesiophyceae) with special reference to the genera Isochrysis Parke, Dicrateria Parke and Imantonia Reynolds. Journal of the Marine Biological Association of the United Kingdom. 57: 7-17. gs Reynolds, N. (1974). Imantonia rotunda gen. et sp. nov., a new member of the Haptophyceae. British Phycological Journal. 9: 429-434. gs Missing or ambiguous references: ; References:
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Dicrateria compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 8-7-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20195 Go to Archive.is to create a permanent copy of this page - citation notes |
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