Foraminifera taxon details
Chomatomediocris Vdovenko, 1973 †
721750 (urn:lsid:marinespecies.org:taxname:721750)
accepted
Genus
Mediocris (Chomatomediocris) brevisculiformis Vdovenko, 1973 † accepted as Chomatomediocris brevisculiformis (Vdovenko, 1973) † (type by original designation)
Mediocris (Chomatomediocris) Vdovenko, 1973 † · unaccepted (Opinion of Conil and Longerstaey...)
Opinion of Conil and Longerstaey (1980) Nomen translatum
- Species Chomatomediocris brevisculiformis (Vdovenko, 1973) †
- Species Chomatomediocris paramediocris (Vdovenko, 1973) †
- Species Chomatomediocris orbiculata (Malakhova, 1975) † accepted as Paralysella orbiculata (Malakhova, 1975) † (unaccepted > superseded combination, Opinion of Cózar and Vachard (2001))
marine, brackish, fresh, terrestrial
fossil only
feminine
(of Mediocris (Chomatomediocris) Vdovenko, 1973 †) Brazhnikova, N. E.; Vdovenko, M. V. (1973). Ранньовізейські форамініфери України - Early Visean foraminifers from Ukraine. <em>Київ: Наук. думка - Kyiv: Naukova Dumka.</em> 1-296., available online at https://books.google.pt/books/about?id=LIReDwAAQBAJ
page(s): p. 214 [details] Available for editors
[request]
page(s): p. 214 [details] Available for editors
[request]
Description Emended diagnosis: Small Mediocrinae with narrow pseudochomata, transitional between the loeblichioids and...
Diagnosis Test discoidal with broadly rounded periphery, axis of coiling may be slightly oscillating in the early stage, later...
Description Emended diagnosis: Small Mediocrinae with narrow pseudochomata, transitional between the loeblichioids and false-eostaffellids.
Occurrence: Late Tournaisian-late Serpukhovian of Donbass (Ukraine), Maroc, northern Iran and Bulgaria (Vieslet, 1983; Vdovenko, 1986; Spasov & Vdovenko, 1989). Discovered in South China.
(Vachard and Hance in Hance et al. (2011)). [details]
Occurrence: Late Tournaisian-late Serpukhovian of Donbass (Ukraine), Maroc, northern Iran and Bulgaria (Vieslet, 1983; Vdovenko, 1986; Spasov & Vdovenko, 1989). Discovered in South China.
(Vachard and Hance in Hance et al. (2011)). [details]
Diagnosis Test discoidal with broadly rounded periphery, axis of coiling may be slightly oscillating in the early stage, later...
Diagnosis Test discoidal with broadly rounded periphery, axis of coiling may be slightly oscillating in the early stage, later planispiral and involute, or final whorls may be slightly evolute; wall calcareous, thin, almost undifferentiated, secondary deposits fill the lateral regions of the chambers as in Mediocris and also form high narrow chomata. L. Carboniferous (M. to U. Visean); USSR: Ukraine, Moldavia, Dnieper-Donets Basin, S. Urals. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Chomatomediocris Vdovenko, 1973 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=721750 on 2026-07-27
Date
action
by
original description
(of Mediocris (Chomatomediocris) Vdovenko, 1973 †) Brazhnikova, N. E.; Vdovenko, M. V. (1973). Ранньовізейські форамініфери України - Early Visean foraminifers from Ukraine. <em>Київ: Наук. думка - Kyiv: Naukova Dumka.</em> 1-296., available online at https://books.google.pt/books/about?id=LIReDwAAQBAJ
page(s): p. 214 [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. 214 [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 Emended diagnosis: Small Mediocrinae with narrow pseudochomata, transitional between the loeblichioids and false-eostaffellids.Occurrence: Late Tournaisian-late Serpukhovian of Donbass (Ukraine), Maroc, northern Iran and Bulgaria (Vieslet, 1983; Vdovenko, 1986; Spasov & Vdovenko, 1989). Discovered in South China.
(Vachard and Hance in Hance et al. (2011)). [details]
Diagnosis Test discoidal with broadly rounded periphery, axis of coiling may be slightly oscillating in the early stage, later planispiral and involute, or final whorls may be slightly evolute; wall calcareous, thin, almost undifferentiated, secondary deposits fill the lateral regions of the chambers as in Mediocris and also form high narrow chomata. L. Carboniferous (M. to U. Visean); USSR: Ukraine, Moldavia, Dnieper-Donets Basin, S. Urals. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
Image from typetaxon