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Original Description
2e. Tribus: Sethoperida. Dyocyrtida cluasa triradiata
B. Sethoperida acute (capitulo spinoso, non laevi).
Bl. secundo articulo rottundato, tribus spinis lateralibus ornato.
BII. secundo articulo pyramidato, tribus appendicibus terminalibus armato.
IIa. tribus basis appendicibus spinaeformibus.
Translation: 2e. Tribe: Sethoperida. Triradiate, closed Dyocyrtida.
B. Acute Sethoperida (with cephalis spiny, not smooth).
BII. With second segment pyramidal, armed with three terminal appendages.
Ila. With three basal appendages spiniform. (Translated from Latin by E.M.R. and W.R.R.)]
Editors' Notes
[Because Tertahedrina Haeckel,1887a is a junior objective synonym of Tetraedrina Haeckel, 1881a we consider that Campbell [1954, p.D124] subsequently designated Tetrahedrina pyramidalis Haeckel, 1887a, p.1238 as the type species of Tetraedrina Haeckel, 1881a.
Haeckel, E. (1882). Entwurf eines Radiolarien-Systems auf Grund von Studien der Challenger-Radiolarien [Basis for a radiolarian classification from the study of Radiolaria of the Challenger collection]. Jenaische Zeitschrift für Naturwissenschaft. 15: 418-472. gsReferences:
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Tetraedrina compiled by the radiolaria@mikrotax project team viewed: 18-1-2021
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