Membranosphaera bulluliniformis forma sphaerica
From dinoflaj2
"forma sphaerica" Malyavkina in Samoilovitch and Mtchedlishvili, 1961, p.254-255, pl.84, fig.4. Holotype: Samoilovitch and Mtchedlishvili, 1961, pl.84, fig.4. NOW Membranosphaera bulluliniformis subsp. sphaerica. Originally Membranosphaera bulluliniformis forma sphaerica, subsequently (and now) Membranosphaera bulluliniformis subsp. sphaerica. Age: Mid Oxfordian-mid Valanginian. Parent: Membranosphaera bulluliniformis
