Archipera dipleura

Taxonomy

Catalog entries: Archipera dipleura

Original description: Shell ovate or pyriform with irregularly arranged pores of different size. Pores circular, elliptical or roundish. Basal plate pores four, two larger ones at each side of posterior foot; the other two smaller, between the left and right foot. Apical horn arising from where the basal plate and posterior foot unite and extending upward along the cephalic wall, up to the top of the cephalis then becoming free toward the outside. Frontal horn arising between two small basal plate pores, their manner of growth resembling that of the apical horn. The frontal and apical horns are situated opposite to each other, in. lateral view, (fig. 4 8a-d) appearing as double ribs. Three feet of different length and size； in some individuals (fig. 48a—c) slightly longer, with lesser number of branches； in other individuals, shorter (possibly broken) with greater mimber of branches which connect with each other forming a network (fig. 48d—f). This new species is similar to Peridium piriforme (Popofsky, 1908, p, 273, pi. 31, fig. 9) but the latter has only one apical horn and is without frontal horn.

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): Extant. Data source:
First occurrence (base): within Serravallian Stage (11.62-13.82Ma, base in Serravallian stage). Data source:

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.
• (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Archipera

Archipera dipleura compiled by the radiolaria@mikrotax project team viewed: 15-8-2026 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/radiolaria/index.php?id=206401 Go to Archive.is to create a permanent copy of this page - citation notes

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