Cornutella californica

Classification: rads_cenozoic -> Theoperidae -> Acropyramiidae -> Cornutella -> Cornutella californica
Sister taxa: C. californica, C. clava, C. profunda, C. stiligera, C. sp.


Citation: Cornutella californica Campbell & Clark 1944
Rank: species

Catalog entries: Cornutella californica

Original description: Shell generally conical (25°); apical horn stout and cylindrical or narrow conical (2°), in few specimens fully as long as shell itself, more usually shorter, and often broken; lateral shell contour only locally modified by insignificant changes; apertural margin smooth and entire (?), commonly torn and highly irregular; pores subelliptical to subhexagonal, latter almost abruptly changed from former in suboral 0.25 of shell, and marked by corresponding change in shell framework which in upper, longer section is wide while in shorter, lower section is thin and formed of delicate beams.
Remarks on original description: The authors here list Cornutella californica under the subgeneric name Cornutissa and include the subgeneric name in the species name.[comment from RadWorld database]


Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in "Holocene" stage). Data source:

Plot of occurrence data:



Cornutella californica compiled by the radiolaria@mikrotax project team viewed: 17-4-2021

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