CATALOG OF ORIGINAL DESCRIPTIONS: Tripocalpis simplex Nishimura 1992

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.

Higher levels: rads_cat -> T -> Tripocalpis -> Tripocalpis simplex
Other pages this level: T. cassidus, T. cortinaris, T. plectaniscus, T. simplex, T. tricostata, T. triserrata

Tripocalpis simplex

Citation: Tripocalpis simplex Nishimura 1992
Rank: species
Type specimens: pl.3, fig.10; pl.12, fig.13
Type repository: Holotype n° LMMN AN0025-8, Laboratory of the Microfossil's study of Matsumoto, Nagano, Japan
Described on page(s) : p.331
Family (traditional): Plagiacanthidae
Family (modern): Clathromitridae

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Current identification/main database link: Tripocalpis simplex Nishimura 1992

Original Description
Shell subspherical or hemi-spherical, with irregular small circular pores with polygonal frames, bearing a sharp three-bladed apical horn. Distinct peristome, from which extends three terminal feet; as extension of L, L and D. Feet stout convexly curved outward, three-bladed in section without notches or branches.

(Based on 7 specimens) Height of cephalis 62-80 µ and maximum width of cephalis 72-110 µ Distinguishing characters (rw): This species is similar to Cladospyris tribrachiata Ehrenberg (1875, pl. 21, fig. 8) but the former is distinguished by possessing an apical horn and three feet without notches or branches. T. simplex is distinguished from T. cassidus as described under that species.

Etymology: simplexis derived from the Latin, meaning simple.


Nishimura, A. (1992). Paleocene radiolarian biostratigraphy in the northeast Atlantic at Site 384, Leg 43, of the Deep Sea Drilling Project. Micropaleontology. 38(4): 317-362. gs


Tripocalpis simplex compiled by the radiolaria@mikrotax project team viewed: 8-3-2021

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