Genus

Pachystrophia Perner, 1903

Aiheeseen liittyvät julkaisut
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I. pp. 1-346. Valgus.
Eichwald, E. 1861. Paleontologiâ Rossii. Drevnij period. II. Fauna grauvakkovoj, gornoizvestkovoj i medistoslancevatoj formacij Rossii. pp. 1-521. R. Golike (former Ya. Ionsona).
Eichwald, E. 1856. Beitrag zur geographischen Verbreitung der fossilen Thiere Russlands. Alte Periode. (Fortsetzung. S. Bulletin 1856. N 2. pag. 406.). Bulletin of the Moscow Society of Naturalists. Geological series 29, IV, 555-608.
List of species
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Luokittelu
Organism groupBiota
KingdomAnimalia
PhylumMollusca
ClassGastropoda
SubclassEogastropoda
OrderEuomphalina
SuperfamilyEuomphaloidea
FamilyHolopeidae
GenusHolopea
Pachystrophia
Speciesdevexa
dilatata
helicoides
vortex