radiolaria - rads_cenozoic - Calocycletta caepa

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radiolaria - rads_cenozoic - Calocycletta caepa radiolaria - rads_cenozoic - Calocycletta caepa

Calocycletta caepa

Classification: rads_cenozoic -> Pterocorythidae -> Calocycletta -> Calocycletta caepa
Sister taxa: C. acanthocephala, C. anekathen, C. caepa, C. cladara, C. costata, C. parva, C. robusta, C. serrata, C. virginis, C. sp.

rad_org Calocycletta caepa img2649.jpg

Taxonomy

Citation: Calocycletta caepa Moore 1972

Taxonomic rank: species

Basionym: Calocycletta caepa

Synonyms:
1972 Calocycletta caepa - Moore p. 150, pl. 2, figs. 4-7

From Suzuki Paleotax db:

1972 Calocycletta caepa n. sp. Moore p. 150, pl. 2, figs. 4-7
1973 Calocycletta caepa Moore Dinkelman p. 788, pl. 7, fig. 9
1973 Calocycletta costata (Riedel) Dinkelman p. 788, pl. 7, fig. 8
1974 Calocycletta caepa Moore Kruglikova pl. 2, fig. 12
1974 Calocycletta caepa Moore Sanfilippo & Riedel p. 1020, pl. 3, fig. 8
1975 Calocycletta caepa Moore Holdsworth p. 532
1975 Calocycletta caepa Moore Kellogg & Hays fig. 1a
1977 Calocycletta caepa Moore Riedel & Sanfilippo pl. 19, fig. 21
1982 Calocycletta caepa Moore Riedel & Sanfilippo pl. 2, figs. 2, 3
1984 Calocycletta caepa Moore Nigrini & Lombari N153-N154, pl. 28, figs. 1a-1d
1985 Calocycletta caepa Moore Sanfilippo et al. figs. 28.5a, 28.5b
1986 Calocycletta caepa Moore Levyikina p. 74, pl. 9, fig. 7
1986 Calocycletta caepa Moore Riedel & Sanfilippo pl. 6, fig. 14
1992 Calocycletta (Calocycletta) caepa Moore Sanfilippo & Riedel pl. 2, fig. 11

Taxonomic discussion: Moore 1972 p.150 pl.2 figs.4-7; Nigrini & Lombari 1984 p.N153 pl.28 figs.1a-d; Moore 1995 p.211; No: Calocycletta caepa Moore; Riedel & Sanfilippo (1978a);Junior synonym of Calocyletta robusta Moore

Catalog entries: Calocycletta caepa

Type images:

type material: C. caepa

Original description: Cephalis ovate, lobed, with sparse circular to subcircular pores and bearing a conical (early forms) to slightly bladed (late forms) apical horn. Thorax subspherical to campanulate, with circular pores hexagonally arranged and longitudinally aligned. External lumbar stricture absent in early forms but distinct in late forms. Abdomen lighter and more delicate than thorax, cylindrical in shape, containing subcircular to circular pores which may show longitudinal alignment and hexagonal arrangement (early forms). Late forms may have a very light, very irregularly pored abdomen that appears almost spongy. Abdomen terminates in five to fourteen triangular or spike-shaped feet which are usually very short and irregularly spaced.

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Neogene Period (2.59-23.03Ma, top in Piacenzian stage). Data source: Lazarus et al. 2015 - "N age group"
First occurrence (base): within Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Lazarus et al. 2015 - "N age group"

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
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
Taxon plotted: Calocycletta caepa, synonyms included - Calocycletta (Calocyclior) caepa; Calocycletta caepa;
See also space-time plot :: Samples map :: Parent: Calocycletta

References:

Moore, T. C. Jr. (1972). Mid-Tertiary evolution of the radiolarian genus Calocycletta. Micropaleontology. 18(2): 144-152. gs

Moore, T. C. (1995b). Radiolarian stratigraphy, Leg 138. Proceedings of the Ocean Drilling Program, Scientific Results. 138: 191-232. gs

Nigrini, C. A. & Lombari, G. (1984). A guide to Miocene Radiolaria. Cushman Foundation for Foraminiferal Research, Special Publication. 22: 1-206. gs O

Riedel, W. R. & Sanfilippo, A. (1978). Stratigraphy and evolution of tropical Cenozoic radiolarians. Micropaleontology. 24(1): 61-96. gs

Calocycletta caepa compiled by the radiolaria@mikrotax project team viewed: 25-3-2025

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