Foraminifera taxon details
Praecystammina Krasheninnikov, 1973 †
737733 (urn:lsid:marinespecies.org:taxname:737733)
accepted
Genus
Praecystammina globigerinaeformis Krasheninnikov, 1973 † (type by original designation)
marine, brackish, fresh, terrestrial
fossil only
feminine
Krasheninnikov, V. (1973). Cretaceous Benthonic Foraminifera, Leg 20, Deep Sea Drilling Project. <em>Initial Reports of the Deep Sea Drilling Project.</em> 20: 205-219., available online at https://doi.org/10.2973/dsdp.proc.20.111.1973
page(s): p. 211 [details] Available for editors
[request]
page(s): p. 211 [details] Available for editors
[request]
Diagnosis Test tiny, up to 0.27 mm in diameter, subglobose, streptospirally enrolled, with few chambers, commonly three per whorl,...
Diagnosis Test tiny, up to 0.27 mm in diameter, subglobose, streptospirally enrolled, with few chambers, commonly three per whorl, periphery broadly ovate; wall very finely agglutinated, surface smoothly finished; aperture areal, oval to slitlike, slightly above the base of the apertural face, and bordered by distinct lip. U. Cretaceous (Santonian to Campanian); NW Pacific in deep-sea cores. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Praecystammina Krasheninnikov, 1973 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=737733 on 2026-05-01
Date
action
by
original description
Krasheninnikov, V. (1973). Cretaceous Benthonic Foraminifera, Leg 20, Deep Sea Drilling Project. <em>Initial Reports of the Deep Sea Drilling Project.</em> 20: 205-219., available online at https://doi.org/10.2973/dsdp.proc.20.111.1973
page(s): p. 211 [details] Available for editors [request]
page(s): p. 211 [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Test tiny, up to 0.27 mm in diameter, subglobose, streptospirally enrolled, with few chambers, commonly three per whorl, periphery broadly ovate; wall very finely agglutinated, surface smoothly finished; aperture areal, oval to slitlike, slightly above the base of the apertural face, and bordered by distinct lip. U. Cretaceous (Santonian to Campanian); NW Pacific in deep-sea cores. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
Image from typetaxon