Foraminifera taxon details
Plectogyranopsis Vachard, 1977 †
721732 (urn:lsid:marinespecies.org:taxname:721732)
accepted
Genus
Endothyra convexa Rauzer-Chernousova, 1948 † accepted as Plectogyranopsis convexa (Rauzer-Chernousova, 1948) † (type by original designation)
- Species Plectogyranopsis ampla (Conil & Lys, 1964) †
- Species Plectogyranopsis convexa (Rauzer-Chernousova, 1948) †
- Species Plectogyranopsis crescens (Conil & Lys, 1964) †
- Species Plectogyranopsis dendrei (Conil & Lys, 1964) †
- Species Plectogyranopsis eocompressa (Skipp, 1969) †
- Species Plectogyranopsis exelikta (Conil & Lys, 1964) †
- Species Plectogyranopsis moraviae Conil & Longerstaey, 1980 †
- Species Plectogyranopsis paraconvexa (Brazhnikova & Rostovtseva, 1967) †
- Species Plectogyranopsis pseudocrassa (Wan in Wan et al., 1963) †
- Species Plectogyranopsis regularis (Rauzer-Chernousova, 1948) †
- Species Plectogyranopsis settlensis Conil & Longerstaey, 1980 †
- Species Plectogyranopsis stricta (Conil & Lys, 1964) †
- Species Plectogyranopsis hirosei (Okimura, 1965) † accepted as Endothyranopsis hirosei Okimura, 1965 † accepted as Rectocribranopsis hirosei (Okimura, 1965) †
- Species Plectogyranopsis pauca (Postoyalko, 1975) † accepted as Latiendothyranopsis pauca (Postoyalko, 1975) † (unaccepted > superseded combination, Opinion of Kobayashi and Vachard (2022))
marine, brackish, fresh, terrestrial
fossil only
feminine
Vachard, D. (1977). Etude stratigraphique et micropaléontologique (Algues et Foraminifères) du Viséen de la Montagne Noire (Hérault, France). <em>Mémoires de l'Institut géologique de l'Université de Louvain.</em> 29: 111–195.
page(s): p. 145 [details] Available for editors
[request]
page(s): p. 145 [details] Available for editors
[request]
Description Description: Endothyranopsinae with endothyroid coiling. Chambers relatively large, hemispherical, not numerous. Septa more...
Diagnosis Test robust, planispiral or with slightly irregular early whorls, nautiloid, biumbilicate, chambers inflated, enlarging...
Description Description: Endothyranopsinae with endothyroid coiling. Chambers relatively large, hemispherical, not numerous. Septa more or less truncated at the base. Wall brownish, granular.
Occurrence: ?Early Ivorian of Belgium (Conil et al., 1989). Visean; Paleotethyan (questionable in late Tournaisian and early Serpukhovian) and Perigondwanan (Devuyst, 2006, fig. 5.10 p. 294). ?Meramecian of Arizona (Skipp, 1969). ?Late Serpukhovian of Algeria (under the name Endothyranopsis sp.; Sebbar, 2000, pl. 7, fig. 15). Biozones 1 (Aleksian) and 2 (Mikhailovian) of Akiyoshi area.
(Kobayashi and Vachard (2022)). [details]
Occurrence: ?Early Ivorian of Belgium (Conil et al., 1989). Visean; Paleotethyan (questionable in late Tournaisian and early Serpukhovian) and Perigondwanan (Devuyst, 2006, fig. 5.10 p. 294). ?Meramecian of Arizona (Skipp, 1969). ?Late Serpukhovian of Algeria (under the name Endothyranopsis sp.; Sebbar, 2000, pl. 7, fig. 15). Biozones 1 (Aleksian) and 2 (Mikhailovian) of Akiyoshi area.
(Kobayashi and Vachard (2022)). [details]
Diagnosis Test robust, planispiral or with slightly irregular early whorls, nautiloid, biumbilicate, chambers inflated, enlarging...
Diagnosis Test robust, planispiral or with slightly irregular early whorls, nautiloid, biumbilicate, chambers inflated, enlarging rapidly, four to five in the final whorl, septa short, straight, thick, following the curvature of the outer wall but bluntly terminated; wall calcareous, finely granular, may be recrystallized or partially replaced and thus appear more coarsely granular or even agglutinated, thick, finely perforate, no supplementary deposits other than thickening of the septa; aperture basal, simple. L. Carboniferous (L. Visean) to U. Carboniferous (L. Namurian); European USSR; Belgium; Czechoslovakia; Denmark; France; Germany. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Plectogyranopsis Vachard, 1977 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=721732 on 2026-04-03
Date
action
by
original description
Vachard, D. (1977). Etude stratigraphique et micropaléontologique (Algues et Foraminifères) du Viséen de la Montagne Noire (Hérault, France). <em>Mémoires de l'Institut géologique de l'Université de Louvain.</em> 29: 111–195.
page(s): p. 145 [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. 145 [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: Endothyranopsinae with endothyroid coiling. Chambers relatively large, hemispherical, not numerous. Septa more or less truncated at the base. Wall brownish, granular.Occurrence: ?Early Ivorian of Belgium (Conil et al., 1989). Visean; Paleotethyan (questionable in late Tournaisian and early Serpukhovian) and Perigondwanan (Devuyst, 2006, fig. 5.10 p. 294). ?Meramecian of Arizona (Skipp, 1969). ?Late Serpukhovian of Algeria (under the name Endothyranopsis sp.; Sebbar, 2000, pl. 7, fig. 15). Biozones 1 (Aleksian) and 2 (Mikhailovian) of Akiyoshi area.
(Kobayashi and Vachard (2022)). [details]
Diagnosis Test robust, planispiral or with slightly irregular early whorls, nautiloid, biumbilicate, chambers inflated, enlarging rapidly, four to five in the final whorl, septa short, straight, thick, following the curvature of the outer wall but bluntly terminated; wall calcareous, finely granular, may be recrystallized or partially replaced and thus appear more coarsely granular or even agglutinated, thick, finely perforate, no supplementary deposits other than thickening of the septa; aperture basal, simple. L. Carboniferous (L. Visean) to U. Carboniferous (L. Namurian); European USSR; Belgium; Czechoslovakia; Denmark; France; Germany. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
Image from typetaxon