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Trilonche echinatum

Radiolaria - Entactinaria - Entactiniidae

Heliosoma echinatum was named by Hinde (1899). It is a 3D body fossil.

It was recombined as Trilonche echinatum by Aitchison et al. (1999) and Wang et al. (2003).

Synonymy list
YearName and author
1899Heliosoma echinatum Hinde p. 50 figs. pl. 9, figs. 1, 2
1999Trilonche echinatum Aitchison et al. p. 145
2003Trilonche echinatum Wang et al. p. 133

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phylumRetariaCavalier-Smith 1999
classRadiolariaMüller 1858
superorderPolycystina(Ehrenberg 1867)
orderEntactinariaKozur and Mostler 1982
familyEntactiniidaeRiedel 1967
genusTriloncheHinde 1899
speciesechinatum(Hinde 1899)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Y. Wang et al. 2003Two concentric spherical lattice shells with approximately six three-bladed main spines of variable width and length. By-spines are common but are variable and typically thorn-like. One main spine is typically substantially longer and more robust than the others. An internal six-rayed spicule is present within the inner shell.