Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
![]() | Conarachnium facetum neptune records: | |||
![]() | Conarachnium parabolicum neptune records: | |||
Conarachnium sp. neptune records: |
Catalog entries: Conarachnium
Original description: 2a.Tribus: Sethocorida. Dyocyrtida aperta eradiata.
A. Sethocorida limbata = Lophophaenida. (Sethocorida margine ostii. laevi aut succiso).
AII. acuta (capitulo spinoso, non laevi).
IIb. secundo articulo conico, ostio nec coarctato nec dilatato.
b++ spinis capituli pluribus
§1. sec. articulo laevi.
Translated description: 2a. Tribe: Sethocorida. Open eradiate dyocyrtids.
A. Sethocorida with a girdle = Lophophaenida (Sethocorida with a smooth or truncate apertural margin).
AII. Acute (with cephalis spiny, not smooth).
IIb. With the second segment conical and the aperture neither constricted nor dilated.
b++ With more than one cephalic spine.
§1. With the second segment smooth. (Translated from Latin by E.M.R. and W.R.R.)]
Remarks on original description: Although described as a sub-genus by Haeckel, Conarachnium has been used as a genus in the description of the species listed here.
Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): at base of Gelasian Stage (0% up, 2.6Ma, in Gelasian stage). Data source: Total of range of species in this database
Plot of occurrence data:
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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Conarachnium compiled by the radiolaria@mikrotax project team viewed: 27-1-2021
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