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Radiolaria - Spumellaria - Pantanelliidae


Original description: Test spherical to ellipsoidal with two triradiate polar spines. Meshwork of test comprised of numerous concentric subspherical rings of pentagonal and hexagonal pore frames anchoring to pillar-like structure at pore frame vertices. Size of pore frames decreasing gradually toward center of spherical test.

Original remarks: Pseudopantanellium n. gen., has super&64257;cial

resemblance to Pantanellium Pessagno (1977b). However, Pseudopantanellium can be distinguished from

Pantanellium by having a series of concentric layers of

pentagonal or hexagonal pore frames rather than consisting only of a cortical shell and a medullary shell.

Etymology: From the Latin pseudo false, and Pantanellium.

Pseudopantanellium was named by Yeh (1987) [Sepkoski's age data: J Plie-u J Toar-l Sepkoski's reference number: 763].

It was assigned to Pantanelliinae by De Wever et al. (2001); and to Spumellaria by Sepkoski (2002).

Synonymy list
YearName and author
1987Pseudopantanellium Yeh
2001Pseudopantanellium De Wever et al. p. 111
2002Pseudopantanellium Sepkoski, Jr.

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phylumRetariaCavalier-Smith 1999
classRadiolariaMüller 1858
superorderPolycystina(Ehrenberg 1867)
orderSpumellariaEhrenberg 1875
familyPantanelliidaePessagno 1977
subfamilyPantanelliinaePessagno 1977

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.

No diagnoses are available