radiolaria - rads_cat - Aspis velutochlamydosaurus

CATALOG OF ORIGINAL DESCRIPTIONS: Aspis velutochlamydosaurus 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 -> A -> Aspis -> Aspis velutochlamydosaurus
Other pages this level: A. murus, A. velutochlamydosaurus

Aspis velutochlamydosaurus

Citation: Aspis velutochlamydosaurus Nishimura 1992
Rank: species
Described on page(s) : p.360
Type specimens: pl.10, figs.6-8; pl.13, fig.11
Type repository: Holotype n° LMMN AN0001-8, and paratypes n° LMMN AN0003-2, Laboratory of the Microfossil's study of Matsumoto, Nagano.
Family (traditional): Artostrobiidae
Family (modern): Nassellaria

Current identification/main database link: Aspis velutochlamydosaurus Nishimura 1992

Original Description

Shell of three (?) segments; cephalis irregularly spherical, quite thick-walled, rough-surfaced, with several tube-like nodules externally, bearing a rod-like stout apical spine of which the base possesses a large pore, and a conical thick tube-like projection (probably V) with a large opening near the collar stricture. Thorax spindle-shaped cylindrical, its pores circular or subcircular with polygonal pore-frames regularly arranged with three solid, rod-like lateral wings/feet in the distal portion. Abdomen (?) commonly broken, only fragments of thin-walled lattice, its pores irregular.

(Based on 15 specimens) Overall height 110-132 µ, maximum width of thorax 58-62 µ, of cephalis 28-36 µ, length of feet 30-40 µ and of apical horn 20-30 µ. Distinguishing characters (rw): This form differs from Aspis murus in having an apical horn and three lateral wings/feet. There seems to be a close evolutionary relationship between both species. The two species do not co-occur: Aspis velutochlamydosaurus appears after Aspis murus disappears.



velutochlamydosaurus means like a frilled lizard.

Extra details from original publication

Editors' Notes


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


Aspis velutochlamydosaurus compiled by the radiolaria@mikrotax project team viewed: 29-11-2022

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