Pteroscenium pinnatum

Classification: rads_cenozoic -> Plagiacanthidae -> Lophophaenidae -> Pteroscenium -> Pteroscenium pinnatum
Sister taxa: P. arcuatum, P. pinnatum, P. sp.


Citation: Pteroscenium pinnatum Haeckel 1887
Rank: species
Basionym: Pteroscenium pinnatum

Catalog entries: Pteroscenium pinnatum

Original description: Shell campanulate, smooth, somewhat longer than broad, with irregular delicate network of small roundish pores. Columella straight, with numerous (eight to twelve) triradiate verticils of ascending lateral branches, which are inserted in the shell-wall. The uppermost end of the columella is a conical apical horn. The three divergent feet are smooth, slender, conical, slightly curved, about as long as the shell, pinnate, with six to ten pairs of ascending lateral branches, parallel to those of the columella and inserted on the three vaulted lateral wings. (Fig. 14 exhibits the outside of the shell, fig.15 the internal structure of the cortina, fig. 16 the basal view.)


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant Data source: Lazarus et al. 2015 - "R age group"
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: Lazarus et al. 2015 - "R age group"

Plot of occurrence data:



Pteroscenium pinnatum compiled by the radiolaria@mikrotax project team viewed: 15-4-2021

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