radiolaria - rads_cenozoic - Dictyoprora pirum

radiolaria - rads_cenozoic - Dictyoprora pirum radiolaria - rads_cenozoic - Dictyoprora pirum

Dictyoprora pirum

Classification: rads_cenozoic -> Artostrobiidae -> Dictyoprora -> Dictyoprora pirum
Sister taxa: D. amphora, D. armadillo, D. mongolfieri, D. ovata, D. physothorax, D. pirum, D. salillum, D. urceolus, D. sp.

Taxonomy

Citation: Dictyoprora pirum (Ehrenberg 1873)

Rank: species

Basionym: Eucyrtidium pirum Nigrini 1977

Taxonomic discussion: (Ehrenberg) 1873 p.232; 1875 pl.10 fig.14 as Eucyrtidium; Nigrini 1977 p.251 pl.4 fig.8; Neogene; Eucyrtidium pyrum (Ehrenberg)

Catalog entries: Eucyrtidium pirum

Type images:

x: E. pirum

Original description: [2-segmented, pyriform, smooth; cephalis campanulate, large and unarmed, with pores in approximately longitudinal rows. Second segment constricted at each end, globosely swollen medianly) with the terminal aperture narrow and with a sub-even margin. Surface provided with widely separated transverse rows of pores. (Translated from Latin by E.M.R. and W.R.R.)]

Total length 94µm, of cephalis 37µm, of second segment 56µm. 3-4 pores in 23µm. Distinguishing characters (rw): This is a non-costate species related to Eucyrtidium mongolfieri.
Remarks on original description: [New name Theocampe pirum (Ehrenberg) Haeckel, modified as Dictyoprora pirum by Nigrini, 1977]

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within Paleogene Period (23.03-66.04Ma, top in Chattian stage). Data source: Lazarus et al. 2015 - "P age group"
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Lazarus et al. 2015 - "P 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: Dictyoprora pirum, synonyms included - Dictyoprora pirum; Theocampe pirum;
See also space-time plot :: Samples map :: Parent: Dictyoprora

References:

Ehrenberg, C. G. (1874b). Grössere Felsproben des Polycystinen-Mergels von Barbados mit weiteren Erläuterungen. Monatsberichte der Koniglichen Preussische Akademie der Wissenschaften zu Berlin. 1873: 213-263. gs V O

Nigrini, C. A. (1977). Tropical Cenozoic Artostrobiidae (Radiolaria). Micropaleontology. 23(3): 241-269. gs

Dictyoprora pirum compiled by the radiolaria@mikrotax project team viewed: 22-3-2023

Taxon Search:

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AphiaID: not found
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=203933 Go to Archive.is to create a permanent copy of this page - citation notes

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