- shunnerensis. P.
helmsensis (Whittington, 1954). 339.4–318.1 Ma, Texas. P.
iwaizakiensis (Kobayashi and Hamada, 1984). 265.0–259.0 Ma, ****an. P. morrowensis...
- for
species †Dybowskiella †Dybowskiella sp. †Dyscritella †Dyscritella
iwaizakiensis †Dyscritellina †Dyscritellina sp. †?Fistulamina †?Fistulamina sp. †Fistulipora...