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.


Citation: Calocycletta caepa Moore 1972
taxonomic rank: species
Basionym: Calocycletta caepa
1972 Calocycletta caepa - Moore p. 150, pl. 2, figs. 4-7
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

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.


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:


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: 23-5-2024

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