Genus
Rigidella Öpik, 1937
Selection of related publications
Tinn, O., Meidla, T. 2004. Phylogenetic relationships of Early-Middle Ordovician ostracods of Baltoscandia. Palaeontology 47, 2, 199-221. DOI:10.1111/j.0031-0239.2004.00369.x
Tolmacheva, T., Egerquist, E., Meidla, T., Tinn, O., Holmer, L. 2003. Faunal composition and dynamics in unconsolidated sediments: a case study from the Middle Ordovician of the East Baltic. Geological Magazine 140, 1, 31-44. DOI:10.1017/S001675680200701X
Ivantsov, A. Yu., Melnikova, L. M. 1998. The lower Ordovician Volkhov and Kunda horizons and characteristics of trilobites and ostracodes (the Volkhov River, Leningrad region). Stratigraphy and Geological Correlation 6, 5, 47-63.
Sarv, L. 1959. Ordovician ostracodes in the Estonian S.S.R.. ENSV TA Geoloogia Instituudi uurimused IV, 1-210.
List of species
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Ostracoda |
| Order | Beyrichicopida |
| Suborder | Palaeocopa |
| Family | Ctenonotellidae |
| Subfamily | Steusloffiinae |
| Genus | Henningsmoenia |
| Pseudostrepula | |
| Rigidella | |
| Species | dubia |
| mitis | |
| Genus | Steusloffia |
References based on distribution
- Sarv, L., 1959 Mäeküla
- Sarv, L., 1959 Ülgase outcrop
- Ivantsov & Melnikova, 1998 Babino quarry Leningrad district Volkhov Stage
- Tolmacheva et al., 2003a Putilovo quarry, Leningrad Oblast Volkhov Stage
- Tinn & Meidla, 2004 Hällekis quarry, Sweden
- Olempska, 1994 Mojcza Quarry, Poland Ordovician