radiolaria - rads_cenozoic - Aspis radiolaria - rads_cenozoic - Aspis


Classification: rads_cenozoic -> Artostrobiidae -> Aspis
Sister taxa: Artobotrys, Artostrobium, Aspis, Botryostrobus, Buryella, Dictyoprora, Lithamphora, Lithomitra, Phormostichoartus, Siphocampe, Siphostichartus, Spirocyrtis, Theocamptra, Tricolocampe
Daughter taxa (time control age-window is: 0-800Ma)
Aspis murus

neptune records: 6
Aspis velutochlamydosaurus

neptune records: 11
Aspis sp.

neptune records:


Citation: Aspis Nishimura 1992
taxonomic rank: genus
Basionym: Aspis

Catalog entries: Aspis

Original description: Test consists of two or three (?) segments; cephalis quite rough-surfaced, covered with flared, bugle-like tubes or pores, often with an apical horn. Internal cephalic skeletal elements invisible. It is possible that the cephalis may be broken or missing, as the apical part is remarkably ragged externally. Thorax cylindrically spindle-shaped, penetrated by many circular pores regularly longitudinally arranged. Abdomen (?) quite short, broken or ragged, often with three terminal feet.


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Paleogene Period (100% up, 23Ma, in Aquitanian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:


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 compiled by the radiolaria@mikrotax project team viewed: 19-4-2024

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