World Register of Marine Species (WoRMS)
Howchinia subplana (Brazhnikova & Yartseva, 1956)
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2026). World Foraminifera Database. Howchinia subplana (Brazhnikova & Yartseva, 1956)&nbsp;&#8224;. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1337431 on 2026-08-30
Brazhnikova, N. E.; Yartseva, M. V. (1956). К вопросу об эволюции рода Monotaxis - To the question of evolution of the genus Monotaxis. Академия наук СССР Вопросы микропалеонтологии - Academy of Sciences USSR Questions of Micropaleontology. 1: 62-68.
Monostori, M. (1975). The microfauna of the Carboniferous limestone at Szabadbattyán (Transdanubia, Hungary). Part I. Annales Universitatis Scientiarum Budapestinensis de Rolando Eötvös nominatae, Sectio Geologica. 17[1973]: 217-241.