Bacillariophyceae - Paraliales - Pseudopodosiraceae
Full reference: Z. I. Glezer, I. V. Makarova, A. I. Moisseeva and V. A. Nikolaev. 1992. The diatoms of the USSR fossil and Recent. Vol. II. fasc. 2: Stephanodiscaceae, Ectodictyonaceae, Paraliaceae, Radialiplicataceae, Pseudopodosiraceae, Trochosiraceae, Melosiraceae, Aulacosiraceae]. St Petersburg NAUKA St Petersburg branch 2(2):128 pp., 6
Parent taxon: Paraliales according to V. A. Nikolaev et al. 2001
Sister taxa: Paraliaceae, Radialiplicataceae
Subtaxa: Pseudopodosira
Ecology: "photoautotroph"
Distribution:
• Pliocene of Japan (2 collections)
• Paleocene of Antarctica (4)
• Cretaceous of Antarctica (1), Canada (7: Northwest Territories, Nunavut)
Total: 14 collections each including a single occurrence