Ataxophragmiidae

Various views of Karreriella bradyi, from Brady (1884).

Belongs within: Ammodiscana.

The Ataxophragmiidae are a group of agglutinated Foraminifera known from the Late Carboniferous to the present. Most species are triserial or trochospiral with three or more chambers to a whorl in early stages, reducing to two chambers or uniserial in later stages (Loeblich & Tappan 1964).

The Ataxophragmiinae are a group of Foraminifera known from the Lower Cretaceous to the present (Loeblich & Tappan 1964).

Characters (from Loeblich & Tappan 1964): Test free, trochospiral, uncoiling or uniserial; wall agglutinated; aperture a basal slit in the early stage, later may become terminal, cribrate or toothed.

Ataxophragmiidae [Opisthotrischistidae, Trischistidae]
|--Varsoviella Gawor-Biedowa 1987 [Varsoviellinae]G-B87
| `--*V. pazdroae Gawor-Biedowa 1987G-B87
`--Ataxophragmiinae [Ataxophragmidea]LT64
|--Voloshovinella Loeblich & Tappan 1964 (see below for synonymy)LT64
| `--*V. aequisgranensis (Beissel 1891) [=Lituola aequisgranensis, *Beisselina aequisgranensis]LT64
|--Hagenowina Loelich & Tappan 1961LT64
| `--*H. quadribullata (von Hagenow 1842) [=Valvulina quadribullata]LT64
|--Ataxophragmium Reuss 1860 [=Ataxogyroidina Marie 1941]LT64
| `--*A. variabile (d’Orbigny 1840) [=Bulimina variabilis, *Ataxogyroidina variabilis]LT64
|--Arenobulimina Cushman 1927M13, LT64 [incl. Ataxophragmoides Brotzen 1948LT64]
| | i. s.: A. frankei (Brotzen 1948) [=*Ataxophragmoides frankei]LT64
| |--*A. (Arenobulimina) presli (Reuss 1846) [=Bulimina presli]LT64
| `--A. (Pasternakia) cuneataG-B87
`--AtaxoorbignynaM13

Voloshovinella Loeblich & Tappan 1964 [=Beisselina Voloshinova & Balakhmatova in Rauzer-Chernousova & Fursenko 1959 non Canu 1913]LT64

*Type species of generic name indicated

References

[G-B87] Gawor-Biedowa, E. 1987. New benthic foraminifers from the Late Cretaceous of Poland. Acta Palaeontologica Polonica 32 (1-2): 49–72.

[LT64] Loeblich, A. R., Jr & H. Tappan. 1964. Sarcodina: chiefly “thecamoebians” and Foraminiferida. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt C. Protista 2 vol. 1. The Geological Society of America and The University of Kansas Press.

[M13] Mikhalevich, V. I. 2013. New insight into the systematics and evolution of the Foraminifera. Micropaleontology 59 (6): 493–527.

Leave a comment

Your email address will not be published. Required fields are marked *