radiolaria - rads_cat - Artostrobium doliolum

CATALOG OF ORIGINAL DESCRIPTIONS: Artostrobium doliolum Riedel & Sanfilippo 1971

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 -> Artostrobium -> Artostrobium doliolum
Other pages this level: A. doliolum, A. rhinoceros

Artostrobium doliolum

Citation: Artostrobium doliolum Riedel & Sanfilippo 1971
Rank: species
Described on page(s) : p.1599
Type specimens: pl.1h,figs.1-3, pl.8, figs.14-15
Family (traditional): Artostrobiidae
Family (modern): Artostrobiidae

Current identification:

Original Description

Spindle-shaped, four-segmented artostrobiid in which the intersegmental strictures are not strongly pronounced externally. Cephalis very small, spherical bearing a lateral tube that lies along the thoracic wall and is thus directed obliquely downward. Thorax and third segment truncate-conical; fourth segment the widest, tapering distally, in some specimens with a poreless peristome. All post-cephalic segments with pores in closely-spaced transverse rows.

[Based on 30 specimens]. Total length 95 to 150µm. Maximum breadth 75 to 100µm (usually about 85µm). Distinguishing characters (rw): This species differs from all described members of the family in the broadly spindle-shaped form of the four-segmented shell, without very pronounced external strictures. Phylogeny (rw): It apparently developed from a form with less developed third segment, more widely separated rows of pores and somewhat more pronounced intesegmental strictures (Plate 1H, Figure 4; Plate 2I, Figures 1-8; Plate 3E, Figures 7-9) as we are not yet sure of the phylogenetic development of this form, its assignment to the genus Artostrobium is arbitrary.




Extra details from original publication

Editors' Notes


Riedel, W. R. & Sanfilippo, A. (1971). Cenozoic Radiolaria from the western tropical Pacific, Leg 7. Initial Reports of the Deep Sea Drilling Project. 7: 1529-1666. gs


Artostrobium doliolum compiled by the radiolaria@mikrotax project team viewed: 29-11-2022

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