PaleoDB taxon number: 270
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.
Full reference: K. Y. Yeh. 1987. Taxonomic Studies of Lower Jurassic Radiolaria from East-Central Oregon. National Museum of Natural Science Special Publications 2:1-169
Subtaxa: Pseudopantanellium floridum
Ecology: passively mobile planktonic omnivore