Position in a system
| system | Vitae - living organisms |
| domain | Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells |
| superregnum | Bikonta |
| Cabozoa | |
| kingdom | Rhizaria Cavalier-Smith, 2002 |
| phylum | Foraminifera d'Orbigny, 1826 |
| class | Rotalidia |
| order | Rotaliida Delage & Hérouard, 1896 |
| superfamily | Discorbacea Ehrenberg, 1838 |
| family | Pegidiidae Heron-Allen & Earland, 1928 |
| genus | Trochulina d'Orbigny, 1839 |
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