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).