Family
Conchoprimitiidae Öpik, 1935
Selection of related publications
Tinn, O., Meidla, T., Sohar, K. 2010. Intraspecific variation and polymorphism in the ostracode Conchoprimitia socialis (Brogger, 1882) from the early Middle Ordovician Baltoscandian Paleobasin.  Bulletin of Geosciences   85,   4,   603-616. DOI:10.3140/bull.geosci.1183
Tinn, O., Meidla, T., Ainsaar, L., Kivioja, K. 2010. Rich and heterogenous fossil ostracod fauna in the Ordovician sediment intrusions at Osmussaar Island, Estonia, reveals an ancient impact event.  GFF   132,   3-4,   201-211. DOI:10.1080/11035897.2010.530351
Kivioja, K. 2007. Osmussaare settesoonte ostrakoodifauna [Magistritöö. Juhendaja: O. Tinn]. pp. .  Tartu Ülikool. 
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
Ivantsov, A. Yu., Melnikova, L. M. 2003. Aseri, Lasnamägi and Uhaku Stages of the Ordovician in the Leningrad Region and the characteristics of trilobites and ostracods.  Stratigraphy and Geological Correlation   11,   4,   24-40.
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
Melnikova, L. M. 1999. Ostracodes from the Billingen Horizon (Lower Ordovician) of the Leningrad Region.  Paleontologicheski Zhurnal      2,   147-152.
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.
Meidla, T. 1996. Late Ordovician Ostracodes of Estonia. Fossilia Baltica 2. pp. 1-222.  Tartu University Press. 
Nõlvak, J. 1972. A characterization of the boundary beds of the Kukruse and Idavere stages in the Lipu boring.  Loodusuurijate Seltsi Aastaraamat, pp. 39-59.   Loodusuurijate Selts. 
Sarv, L. 1959. Ordovician ostracodes in the Estonian S.S.R..  ENSV TA Geoloogia Instituudi Uurimused   IV,      1-210.
Jaanusson, V. 1957. Middle Ordovician Ostracodes of Central and Southern Sweden.  Bulletin of the Geological Institutions of the University of Uppsala   37,   17,   173-442.
Öpik, A. 1939. Brachiopoden und Ostrakoden aus dem Expansusschiefer Norwegens.  Norsk Geologisk Tidsskrift   19,      117-142.
Öpik, A. 1937. Ostracoda from the Ordovician Uhaku and Kukruse formations of Estonia.  Tartu Ülikooli juures oleva Loodusuurijate Seltsi Aruanded   43,      65-138.
Öpik, A. 1937. Ostracoda from the Ordovician Uhaku and Kukruse formations of Estonia.  Tartu Ülikooli Geoloogia Instituudi Toimetused   50,      1-58.
Öpik, A. 1935. Ostracoda from the lower Ordovician Megalaspis-limestone of Estonia and Russia.  Tartu Ülikooli juures oleva Loodusuurijate Seltsi Aruanded   42,   3/4,   28-38.
Öpik, A. 1935. Ostracoda from the lower Ordovician Megalaspis-limestone of Estonia and Russia.  Tartu Ülikooli Geoloogia Instituudi Toimetused   44,      1-12.
List of species
1. Ahlintella linta Sidaravičiene, 1992 | Jõhvi Substage
2. Ahlintella orvikui Schallreuter, 1985 | Kunda Stage
8. Conchoprimitia circumstriata (Hessland, 1949) | Kunda Stage
9. Conchoprimitia deminuta Öpik, 1937 | Kukruse Stage
10. Conchoprimitia distincta Sarv, 1959 | Kunda Stage
11. Conchoprimitia dorsodepressula (Hessland, 1949) | Kunda Stage
12. Conchoprimitia eos Henningsmoen, 1954 | Volkhov Stage
13. Conchoprimitia erratica (Krause, 1889) | Volkhov Stage
14. Conchoprimitia excelsa (Steusloff, 1895) | Kunda Stage
15. Conchoprimitia gammae Öpik, 1935 | Volkhov Stage
16. Conchoprimitia glauconitica (Kummerow, 1924) | Volkhov Stage
17. Conchoprimitia inusitata Öpik, 1937 | Kukruse Stage
18. Conchoprimitia leonidi Melnikova, 1999 | Billingen Stage
19. Conchoprimitia leperditioidea Thorslund, 1940 | Upper Ordovician
20. Conchoprimitia levis (Hessland, 1949) | Kunda Stage
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Arthropoda | 
| Subphylum | Crustacea | 
| Superclass | Oligostraca | 
| Class | Ostracoda | 
| Subclass | Podocopa | 
| Order | Palaeocopida | 
| Suborder | Beyrichicopina | 
| Eridostraca | |
| Family | Conchoprimitiidae | 
| Genus | Ahlintella | 
| Bromidella | |
| Conchoides | |
| Conchoprimites | |
| Conchoprimitia | |
| Incisua | |
| Miniconchoides | |
| Family | Cryptophyllidae | 
| Eridoconchidae |