Foraminifera taxon details
Eolasiodiscus Reitlinger, 1956 †
721343 (urn:lsid:marinespecies.org:taxname:721343)
accepted
Genus
Eolasiodiscus donbassicus Reitlinger, 1956 † (type by original designation)
- Species Eolasiodiscus complaniformis Lin, 1985 †
- Species Eolasiodiscus dilatatus Potievskaya, 1964 †
- Species Eolasiodiscus donbacarnus Vachard in Krainer, Vachard & Schaffhauser, 2019 †
- Species Eolasiodiscus donbassicus Reitlinger, 1956 †
- Species Eolasiodiscus facetus Han, 1984 †
- Species Eolasiodiscus galinae Reitlinger, 1956 †
- Species Eolasiodiscus grandis Ivanova, 1973 †
- Species Eolasiodiscus zhurihensis Xia & Zhang, 1984 †
- Species Eolasiodiscus delicatus Lin, 1985 † accepted as Pseudovidalina delicata (Lin, 1985) † (unaccepted > superseded combination, Opinion of Altiner (1988))
- Species Eolasiodiscus medius Wang, 1974 † accepted as Pseudovidalina media (Wang, 1974) † (Opinion of Lin et al. (1990), Vachard in Krainer et al. (2019))
- Species Eolasiodiscus modificatus Potievskaya, 1962 † accepted as Raphconilia modificata (Potievskaya, 1962) † (Type species of Raphconilia)
- Species Eolasiodiscus muradymicus Kulagina in Kulagina et al., 1992 † accepted as Hemidiscopsis muradymicus (Kulagina in Kulagina et al., 1992) † accepted as Hemidiscopsis muradymica (Kulagina in Kulagina et al., 1992) † (Opnion of Cózar et al. (2015))
- Species Eolasiodiscus nanus Lin, 1985 † accepted as Falsodiscus nanus (Lin, 1985) † (Type species of Falsodiscus)
- Species Eolasiodiscus parallelus Lin, 1985 † accepted as Pseudovidalina parallela (Lin, 1985) † (unaccepted > superseded combination, Opinion of Vachard in Krainer et al. (2019))
- Species Eolasiodiscus rectus Potievskaya, 1962 † accepted as Pseudovidalina recta (Potievskaya, 1962) † (Opinion of Vachard et al. (1993))
- Species Eolasiodiscus transitorius (Brazhnikova & Yartseva, 1956) † accepted as Monotaxinoides transitorius Brazhnikova & Yartseva, 1956 †
- Species Eolasiodiscus xintanensis Lin, 1984 † accepted as Pseudovidalina xintanensis (Lin, 1984) † (Opinion of Vachard et al. (1993))
marine, brackish, fresh, terrestrial
fossil only
masculine
Reitlinger, E. A. (1956). Новое семейство Lasiodiscidae - New family Lasiodiscidae. <em>Академия наук СССР Вопросы микропалеонтологии - Academy of Sciences USSR Questions of Micropaleontology.</em> 1: 69-78., available online at http://www.ginras.ru/library/pdf/01_1956_voprosy_mikropaleontologii.pdf
page(s): p. 75 [details] Available for editors
[request]
page(s): p. 75 [details] Available for editors
[request]
Description Description: Discoid lasiodiscid, with prominent hyaline layer filling the umbilicus. Pseudopillars generally conspicuous....
Diagnosis Test discoidal, concavoconvex, spherical proloculus followed by spirally coiled tubular or hemicylindrical second chamber...
Description Description: Discoid lasiodiscid, with prominent hyaline layer filling the umbilicus. Pseudopillars generally conspicuous. Aperture terminal simple, with simple additional sutural apertures with short appendices.
Occurrence: Serpukhovian–Moscovian; Gzhelian–Artinskian; probably cosmopolitan.
(Vachard in Krainer et al. (2019)). [details]
Occurrence: Serpukhovian–Moscovian; Gzhelian–Artinskian; probably cosmopolitan.
(Vachard in Krainer et al. (2019)). [details]
Diagnosis Test discoidal, concavoconvex, spherical proloculus followed by spirally coiled tubular or hemicylindrical second chamber...
Diagnosis Test discoidal, concavoconvex, spherical proloculus followed by spirally coiled tubular or hemicylindrical second chamber that is nearly planispiral to slightly trochospiral, spiral suture thickened, slightly depressed; wall calcareous, with two layers, an inner dark microgranular layer and an outer distinctly pseudofibrous layer, with an umbilical filling on the concave side of the test; aperture at the open end of the chamber, with fissurelike supplementary openings on the convex side of the test along the spiral suture and perpendicular to it. M. to U. Carboniferous; USSR: North America. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Eolasiodiscus Reitlinger, 1956 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=721343 on 2026-05-03
Date
action
by
original description
Reitlinger, E. A. (1956). Новое семейство Lasiodiscidae - New family Lasiodiscidae. <em>Академия наук СССР Вопросы микропалеонтологии - Academy of Sciences USSR Questions of Micropaleontology.</em> 1: 69-78., available online at http://www.ginras.ru/library/pdf/01_1956_voprosy_mikropaleontologii.pdf
page(s): p. 75 [details] Available for editors [request]
basis of record Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors [request]
page(s): p. 75 [details] Available for editors
[request]basis of record Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors
[request]From editor or global species database
Description Description: Discoid lasiodiscid, with prominent hyaline layer filling the umbilicus. Pseudopillars generally conspicuous. Aperture terminal simple, with simple additional sutural apertures with short appendices.Occurrence: Serpukhovian–Moscovian; Gzhelian–Artinskian; probably cosmopolitan.
(Vachard in Krainer et al. (2019)). [details]
Diagnosis Test discoidal, concavoconvex, spherical proloculus followed by spirally coiled tubular or hemicylindrical second chamber that is nearly planispiral to slightly trochospiral, spiral suture thickened, slightly depressed; wall calcareous, with two layers, an inner dark microgranular layer and an outer distinctly pseudofibrous layer, with an umbilical filling on the concave side of the test; aperture at the open end of the chamber, with fissurelike supplementary openings on the convex side of the test along the spiral suture and perpendicular to it. M. to U. Carboniferous; USSR: North America. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
Image from typetaxon