Genus
Quadritia Schallreuter, 1966
Aiheeseen liittyvät julkaisut
Meidla, T. 1996. Late Ordovician Ostracodes of Estonia. Fossilia Baltica 2. pp. 1-222. Tartu University Press.
Sarv, L. 1959. Ordovician ostracodes in the Estonian S.S.R.. ENSV TA Geoloogia Instituudi Uurimused IV, 1-210.
List of species
2. Quadritia (Krutatia) iunior Schallreuter, 1981 | Nabala Stage
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Superclass | Oligostraca |
| Class | Ostracoda |
| Subclass | Podocopa |
| Order | Palaeocopida |
| Suborder | Beyrichicopina |
| Palaeocopa | |
| Family | Ctenonotellidae |
| Subfamily | Ctenentominae |
| Ctenonotellinae | |
| Steusloffiinae | |
| Tallinnellinae | |
| Wehrliinae | |
| Genus | Kiesowia |
| Piretopsis | |
| Pseudorakverella | |
| Quadritia | |
| Subgenus | (Krutatia) |
| Species | aluverensis |
| Genus | Semikiesowia |
| Telegraphia | |
| Tetrada |