Calocycletta caepa

Taxonomy

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.

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

Calocycletta caepa compiled by the radiolaria@mikrotax project team viewed: 30-11-2023 Taxon Search: Advanced Search Short stables page link: https://mikrotax.org/radiolaria/index.php?id=203401 Go to Archive.is to create a permanent copy of this page - citation notes

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