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Radiolaria - Entactinaria - Entactiniidae

Trilonche was named by Hinde (1899) [Sepkoski's age data: D Tr u Sepkoski's reference number: ZR79]. Its type is Trilonche vetusta.

It was assigned to Spumellaria by Sepkoski (2002); to Entactiniinae by Aitchison et al. (1999) and Wang et al. (2003); and to Entactiniidae by De Wever et al. (2001) and Noble et al. (2017).

Synonymy list
YearName and author
1899Druppalonche Hinde
1899Staurodruppa Hinde
1899Trilonche Hinde
1997Bisphaera Won
1998Duosphaera Won
1999Trilonche Aitchison et al. p. 144
2000Bientactinosphaera Afanasieva
2000Ornatoentactinia Afanasieva
2001Trilonche De Wever et al. p. 180
2002Staurodruppa Sepkoski, Jr.
2002Trilonche Sepkoski, Jr.
2003Trilonche Wang et al. p. 132
2017Trilonche Noble et al. p. 449

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phylumRetariaCavalier-Smith 1999
classRadiolariaMüller 1858
superorderPolycystina(Ehrenberg 1867)
orderEntactinariaKozur and Mostler 1982
familyEntactiniidaeRiedel 1967
genusTriloncheHinde 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 or more, well developed, spherical or subspherical shells, and an internal, six-rayed double spicule. When secondary spines are present, the six spines developed from the rays of the internal spicule are generally differentiated and recognizable as main spines. Up to six main spines may be present.