Foraminifera taxon details
Falsodiscus Davydov, 1990 †
1048380 (urn:lsid:marinespecies.org:taxname:1048380)
accepted
Genus
Eolasiodiscus nanus Lin, 1985 † accepted as Falsodiscus nanus (Lin, 1985) † (type by original designation)
- Species Falsodiscus nanus (Lin, 1985) †
- Species Falsodiscus involutus (Zaninetti, Altıner & Çatal, 1981) † accepted as Pseudovidalina involuta Zaninetti, Altıner & Çatal, 1981 † (unaccepted > superseded combination, Opinion of Alipour et al. (2013))
- Species Falsodiscus parallelus (Lin, 1985) † accepted as Eolasiodiscus parallelus Lin, 1985 † accepted as Pseudovidalina parallela (Lin, 1985) † (unaccepted > superseded combination, Vachard et al. (2017))
marine, brackish, fresh, terrestrial
fossil only
masculine
Davydov, V. I. (1990). Архедисциды позднего карбона и перми: гомеоморфия или брадителия? - Archaediscidae in the Upper Carboniferous and Lower Permian: homeomorphy or bradytely?. <em>Тезисы докладов ХI Всесоюзного микропалеонтологического совещания, Москва - Abstracts of the XI All-Union Micropaleontological Meeting, Moscow.</em> 43-44.
page(s): p. 44 [details] Available for editors
[request]
page(s): p. 44 [details] Available for editors
[request]
Description Р. маленькая, от дисковидной до чечевицеобразной, инвол.,...
Taxonomic remark Falsodiscus is very probably a synonym of Pseudovidalina at the concavus stage, because P. xintanensis (lin, 1984) as well...
Description Р. маленькая, от дисковидной до чечевицеобразной, инвол., спир.-плоск., просветы низкие, субпрямоугольные; ст. р. двухслойная, внутр. слой тонкий, темный, микрозернистый, внешн. более толстый, стекловатый с слабо выраженной лучистостью, развит преимущественно в умбональной области, где образует массивные боковые утолщения. 3 вида. В. карбон, гжельский ярус Дарваза, в. пермь кубергандинский и мургабский ярусы, Ю. Китай, Турция.
Test small, from discoidal to lenticular, involute, planospiral, lumens are low, subrectangular; wall is two-layered, the inner layer is thin, dark, microgranular, the outer one is thicker, hyaline weakly radial, developed mainly in the umbonal region, where it forms massive lateral thickenings. 3 species. Upper Carboniferous, Gzhelian stage of Darvaz, Upper Permian Kubergandinian and Murghabian stages, South China, Turkey.
(Vdovenko et al. (1993)). [details]
Test small, from discoidal to lenticular, involute, planospiral, lumens are low, subrectangular; wall is two-layered, the inner layer is thin, dark, microgranular, the outer one is thicker, hyaline weakly radial, developed mainly in the umbonal region, where it forms massive lateral thickenings. 3 species. Upper Carboniferous, Gzhelian stage of Darvaz, Upper Permian Kubergandinian and Murghabian stages, South China, Turkey.
(Vdovenko et al. (1993)). [details]
Taxonomic remark Falsodiscus is very probably a synonym of Pseudovidalina at the concavus stage, because P. xintanensis (lin, 1984) as well...
Taxonomic remark Falsodiscus is very probably a synonym of Pseudovidalina at the concavus stage, because P. xintanensis (lin, 1984) as well as P. parallela (lin, 1984) are transitional in shape between the two genera (i e , from discoidal to lenticular).
(Vachard in Krainer et al. (2019)). [details]
(Vachard in Krainer et al. (2019)). [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Falsodiscus Davydov, 1990 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=1048380 on 2026-02-18
Date
action
by
original description
Davydov, V. I. (1990). Архедисциды позднего карбона и перми: гомеоморфия или брадителия? - Archaediscidae in the Upper Carboniferous and Lower Permian: homeomorphy or bradytely?. <em>Тезисы докладов ХI Всесоюзного микропалеонтологического совещания, Москва - Abstracts of the XI All-Union Micropaleontological Meeting, Moscow.</em> 43-44.
page(s): p. 44 [details] Available for editors [request]
additional source Davydov, V. I. (1991). Архедисциды позднего карбона и перми: гомеоморфия или брадителия? - Archaediscidae in the Upper Carboniferous and Lower Permian: homeomorphy or bradytely?. <em>Бюллетень Московского общества испытателей природы, Отд. геол - Bulletin de la Société des naturalistes de Moscou, Geology.</em> 66(5): 50-57.
page(s): p. 56; note: Erroneously mentionned as a new genus. [details] Available for editors [request]
page(s): p. 44 [details] Available for editors
[request]additional source Davydov, V. I. (1991). Архедисциды позднего карбона и перми: гомеоморфия или брадителия? - Archaediscidae in the Upper Carboniferous and Lower Permian: homeomorphy or bradytely?. <em>Бюллетень Московского общества испытателей природы, Отд. геол - Bulletin de la Société des naturalistes de Moscou, Geology.</em> 66(5): 50-57.
page(s): p. 56; note: Erroneously mentionned as a new genus. [details] Available for editors
[request]From editor or global species database
Description Р. маленькая, от дисковидной до чечевицеобразной, инвол., спир.-плоск., просветы низкие, субпрямоугольные; ст. р. двухслойная, внутр. слой тонкий, темный, микрозернистый, внешн. более толстый, стекловатый с слабо выраженной лучистостью, развит преимущественно в умбональной области, где образует массивные боковые утолщения. 3 вида. В. карбон, гжельский ярус Дарваза, в. пермь кубергандинский и мургабский ярусы, Ю. Китай, Турция.Test small, from discoidal to lenticular, involute, planospiral, lumens are low, subrectangular; wall is two-layered, the inner layer is thin, dark, microgranular, the outer one is thicker, hyaline weakly radial, developed mainly in the umbonal region, where it forms massive lateral thickenings. 3 species. Upper Carboniferous, Gzhelian stage of Darvaz, Upper Permian Kubergandinian and Murghabian stages, South China, Turkey.
(Vdovenko et al. (1993)). [details]
Taxonomic remark Falsodiscus is very probably a synonym of Pseudovidalina at the concavus stage, because P. xintanensis (lin, 1984) as well as P. parallela (lin, 1984) are transitional in shape between the two genera (i e , from discoidal to lenticular).
(Vachard in Krainer et al. (2019)). [details]
From editor or global species database
Image from typetaxon