Foraminifera taxon details
Undatafusulina Leven, 1998 †
1059690 (urn:lsid:marinespecies.org:taxname:1059690)
accepted
Genus
Undatafusulina asiatica Leven, 1998 † (type by original designation)
marine, brackish, fresh, terrestrial
fossil only
feminine
Leven, E. Y. (1998). Stratigraphy and Fusulinids of the Moscovian Stage (Middle Carboniferous) in the Southwestern Darvaz (Pamir). <em>Rivista Italiana di Paleontologia e Stratigrafia.</em> 104(1): 3-42., available online at https://doi.org/10.13130/2039-4942/6108
page(s): p. 22 [details] Available for editors
[request]
page(s): p. 22 [details] Available for editors
[request]
Original description Description. Shell of moderate size, fusiform to subcylindrical, with straight or curved axis and sharply to bluntly...
Original description Description. Shell of moderate size, fusiform to subcylindrical, with straight or curved axis and sharply to bluntly rounded poles. Mature specimens usually possess 5.5 to 6.5 whorls and are bilaterally symmetrical at ail stages of growth. Proloculus small to moderate. Volutions commonly are tightly coiled especially two or three of them. Spirotheca uneven and undulate; undulations or furrows aligned both axially and equatorially so that exterior of shell has pebbled appearance much like that. of surface o{ cobble-stone pavement. Spirotheca consist of tectum, clear diaphanotheca and irregularly inner and outer tectorium. Thickness of spirotheca irregularly variable, even within same volution. Septa fluted from pole to pole; septal arcs are not high and regular. Chomata present on proloculus and in first two-three volutions. More or less clear axial fillings present.
Distribution and age. Darvaz, Donetz Basin; Middle Carboniferous, Upper Moscovian.
(Leven (1998)). [details]
Distribution and age. Darvaz, Donetz Basin; Middle Carboniferous, Upper Moscovian.
(Leven (1998)). [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Undatafusulina Leven, 1998 †. Accessed at: https://marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=1059690 on 2026-06-24
Date
action
by
original description
Leven, E. Y. (1998). Stratigraphy and Fusulinids of the Moscovian Stage (Middle Carboniferous) in the Southwestern Darvaz (Pamir). <em>Rivista Italiana di Paleontologia e Stratigrafia.</em> 104(1): 3-42., available online at https://doi.org/10.13130/2039-4942/6108
page(s): p. 22 [details] Available for editors [request]
page(s): p. 22 [details] Available for editors
[request]From editor or global species database
Original description Description. Shell of moderate size, fusiform to subcylindrical, with straight or curved axis and sharply to bluntly rounded poles. Mature specimens usually possess 5.5 to 6.5 whorls and are bilaterally symmetrical at ail stages of growth. Proloculus small to moderate. Volutions commonly are tightly coiled especially two or three of them. Spirotheca uneven and undulate; undulations or furrows aligned both axially and equatorially so that exterior of shell has pebbled appearance much like that. of surface o{ cobble-stone pavement. Spirotheca consist of tectum, clear diaphanotheca and irregularly inner and outer tectorium. Thickness of spirotheca irregularly variable, even within same volution. Septa fluted from pole to pole; septal arcs are not high and regular. Chomata present on proloculus and in first two-three volutions. More or less clear axial fillings present.Distribution and age. Darvaz, Donetz Basin; Middle Carboniferous, Upper Moscovian.
(Leven (1998)). [details]
From editor or global species database
Image from typetaxon