Palaeostomocystis elongata (Beju, 1971) Yun, 1981

Now Andreedinium. Originally Fromea, subsequently Fromea?, thirdly Wallodinium, fourthly Palaeostomocystis, fifthly (and now) Andreedinium. Nomenclatural sr. synonym of Phallocysta minuta Prauss, 1989, since Prauss, 1989 included Palaeostomocystis (as Fromea) elongata in synonymy with
Phallocysta minuta; however, Riding et al., 1991 considered the form described by Prauss, 1989 as Phallocysta minuta to have a distinctive morphology. Accordingly, we herein propose the name Phallocysta subconica for it.
Tax. jr. synonym of Prismatocystis (now Wallodinium) cylindrica Habib, 1970,
according to Duxbury, 1983; however, Feist-Burkhardt and Monteil in Feist-Burkhardt, 1990 retained Palaeostomocystis (as Andreediruum) elongata as a separate species. Lentin and Williams, 1985 retained this species in Wallodinium.
Holotype: Beju, 1971, pl.3, fig.7, text-fig.6A
Locus typicus: well at Plaviceni, Roumania
Stratum typicum: Bajocian- Oxfordian

Original diagnosis: Beju, 1971, p.289: Fromea elongata
Shell formed of two distinct parts: a subspherical or slightly elongated chamber prolonged by a subcylindrical or slightly conical neck, wide opened at its apical end. The transition from the chamber to the neck is gradual but always recognizable on the borders. Neck/chamber ratio 1/4 to 1/3, Shell wall relatively thin (0.5 - 1.5 Á) levigate to finely punctate. Opening wide, subcircular with smooth or slightly undulated margins.
Dimensions: Overall length: 46 - 70 Á; overall width 24 - 36 Á.