Nannotax3 - ntax_main - Chrysocampanula spinifera

Nannotax3 - ntax_main - Chrysocampanula spinifera Nannotax3 - ntax_main - Chrysocampanula spinifera

Chrysocampanula spinifera

Classification: ntax_main -> other groups -> Haptophytes -> Prymnesiales -> Genera incertae sedis -> Chrysocampanula -> Chrysocampanula spinifera
Sister taxa: C. spinifera, C. sp.

Pienaar & Norris 1979 f01.jpeg
Pienaar & Norris 1979 f09.jpeg
Pienaar & Norris 1979 f07a.jpeg
Pienaar & Norris 1979 f06.jpeg
Pienaar & Norris 1979 f03-4.jpeg
Moestrup f19-25.jpeg
Pienaar & Norris 1979 f05.jpeg
Pienaar & Norris 1979 f07b-d.jpeg

Taxonomy:

Citation: Chrysocampanula spinifera Fournier 1971

Taxonomic rank: species

Basionym: Chrysocampanula spinifera Fournier 1971

Synonyms:

Chrysochromulina spinifera (Fournier 1971) Pienaar & Norris 1979

Taxonomic discussion: The species was included in Chrysochromulina by Pienaar and Norris 1979, but Saez et al. (2004) showed from molecular genetics that it fell outside the Chrysochromulina clade, so Jordan et al. (2004) reinstated Chrysocampanula. This conclusion was supported by Edvardsen et al. 2011.

Moestrup (1979) and Pienaar & Norris (1979) provide descriptions from electron microscopy, which agree very closely

Original description: Cellulae 6-8 µ long, 3-5 µ lat., duo flagella inaequa heterodynamica, atque haptonema breve rigidumque ab apice enascentia habentes; flagella 20-30 et 10-12 µ' long.; haptonema 6-8 µ long.; duae plastides clare flavae; nucleus central is; unum vel duo corpora magna posterior a leucosinus coniecta; oleum factum; stigma nullum; cellula non-metabolica, campanulata, autem cingulo profundo per 213 longitudinem cellulae ab apice extendente praedita; spinae longae tenuesque 10-20 µ long. solum in parte cellulae posteriore infra cingulum repertae; modus reproductionis non observatus; cellulae e loco Bay of Chaleurs, Quebec, Canada dicto lectae. Icon num. una ut holotypa Anglica designata.

Cells 6-8 µ long, 3-5 µ wide with two unequal, heterodynamic flagella and short, rigid haptonema arising apically; flagella 20-30 and 10-12 µ long, haptonema 6-8 po long; plastids two, bright yellow; central nucleus; one or two large posterior bodies thought to be leucosin; oil produced; eyespot absent; cell not metabolic but bell shaped with deep girdle 2/3 of cell length from apex; long fine spines, 10-20 µ long, present only on posterior portion of cell below the girdle; mode of reproduction not observed; collected from the Bay of Chaleurs, Quebec, Canada. Figure 1 is designated as the English holotype.

Type images:

holotype: C. spinifera
x: C. spinifera

Farinacci & Howe catalog pages: Chrysocampanula spinifera

Morphology:

Cells bell-shaped; Flagella unequal, haptonema shorter & non-coiling; Scales plate-like & spine-bearing with radial ribs on one face, fibrils on other face; Pyrenoids ND (Edvardsen et al. 2011)
Scale types:

Spine scales 10-18µm long, hollow with bulpous proimal end truncated distal end; 40-50 per cell
Body scales 0.8-1.1 µm, elliptical with axial ratio about 1.3; flat; prox surface with radial ridges; distal with irregular fibrils and smooth rim

Pienaar & Norris 1979 suggest that the spines are formed coiled inside the cell and straighten when released

Search data:

Lith size: 0->0µm;

The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): Extant. Data source:
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source:

Plot of occurrence data:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
(NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Chrysocampanula

References:

Edvardsen, B., Eikrem, W., Throndsen, J., Sáez, A. G., Probert, I. & Medlin, L. K. (2011). Ribosomal DNA phylogenies and a morphological revision provide the basis for a revised taxonomy of the Prymnesiales (Haptophyta). European Journal of Phycology. 46(3): 202-228. gs

Fournier, R. O. (1971). Chrysocampanula spinifera gen. et sp. nov. (Prymnesiophyceae), a new marine haptophyte from the Bay of Chaleurs, Quebec. Phycologia. 10: 89-92. gs

Moestrup, Ø. (1979). Identification by electron microscopy of marine nanoplankton from New Zealand, including the description of four new species. New Zealand. Journal of Botany. 17: 61-95. gs

Pienaar, R. N. & Norris, R. E. (1979). The ultrastructure of the flagellate Chrysochromulina spinifera (Fournier) comb. nov. (Prymnesiophyceae) with special reference to scale production. Phycologia. 18: 99-108. gs

Sáez, A. G., Probert, I., Young, J. R., Edvardsen, B., Wenche, E. & Medlin, L. K. (2004). A review of the phylogeny of the Haptophyta. In, Thierstein, H. R. & Young, J. R. (eds) Coccolithophores - from molecular processes to global impact. Springer, Berlin 251-270. gs

Chrysocampanula spinifera compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-11-2025

Taxon Search:

Advanced Search

Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20076 Go to Archive.is to create a permanent copy of this page - citation notes

Add Comment

Comments

No comments yet. Be the first!