Desmospyris rhodospyroides


Classification: rads_cenozoic -> Trissocyclidae -> Acanthodesmiidae -> Desmospyris -> Desmospyris rhodospyroides
Sister taxa: D. mamillata, D. rhodospyroides, D. spongiosa, D. stabiloides, D. sp.

Taxonomy

Citation: Desmospyris rhodospyroides Petrushevskaya 1975
Rank: species
Basionym: Desmospyris rhodospyroides
Taxonomic discussion: Petrushevskaya 1975 p.593 pl.10 figs.27-29,31,32 (=Dendrospyris haysi Chen)

Catalog entries: Desmospyris rhodospyroides

Original description: Sagittal ring is enclosed in the cephalis and the pores are smaller and more numerous than in Desmospyris sp. A (Petrushevskaya and Kozlova, 1972, pl. 38, fig. 12, 13). No less than 9-10 pores near the ring (on one lobe of the cephalis). Pores irregular, polygonal; thick walls. Thorax and cephalis are nearly of same width; thorax may be even a hit broader, untypical for the genus. The shell mouth is constricted, may be closed,, and without any special tooth.
Remarks on original description: Description is based on 14 specimens from Site 278 (Core 12).

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:

References:

Petrushevskaya, M. G. (1975a). Cenozoic radiolarians of the Antarctic, Leg 29, DSDP. Initial Reports of the Deep Sea Drilling Project. 29: 541-675. gs


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Desmospyris rhodospyroides compiled by the radiolaria@mikrotax project team viewed: 31-10-2020

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Short stable page link: http://mikrotax.org/radiolaria/index.php?id=203837 Go to Archive.is to create a permanent copy of this page - citation notes



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