Sigmoopsinae Henningsmoen, 1953

Selection of related publications
Perrier, V., Meidla, T., Tinn, O., Ainsaar, L. 2012. Biotic response to explosive volcanism: Ostracod recovery after Ordovician ash-falls. Palaeogeography, Palaeoclimatology, Palaeoecology 365, 166-183. DOI:10.1016/j.palaeo.2012.09.024
Meidla, T. 1996. Late Ordovician Ostracodes of Estonia. Fossilia Baltica 2.
Nõlvak, J., Meidla, T., Uutela, A. 1995. Microfossils in the Ordovician erratic boulders from Southwestern Finland. Bulletin of the Geological Society of Finland 67, 2, 3-26. DOI:10.17741/bgsf/67.2.001
Maletz, J. 1992. The proximal development in Anisograptis (Graptoloidea, Anisograptidae). Paläontologische Zeitschrift 66, 3-4, 297-309. DOI:10.1007/BF02985821
Sidaravičiene, N. 1992. Ordovician ostracods of Lithuania.
Meidla, T. 1986. Neue Ostrakoden aus dem Ordovizium des Baltikums. Proceedings of the Academy of Sciences of the Estonian SSR. Geology 35, 1, 10-19.
Schallreuter, R. 1977. Taxonomie und Phylogenie der paläozoischen Ostrakodengattung. Paläontologische Zeitschrift 51, 1/2, 32-51. DOI:10.1007/BF02986601
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.
Sarv, L. I. 1966. Sexual dimorphism in Early Palaeozoic ostracodes. The fossil ostracods. Proceedings of the First All-Union Colloquium on fossil ostracods, Lvov, 1963, pp. 14-23.
Sarv, L. I. 1962. Ostracods from the Porkuni stage and Llandovery of Estonia. ENSV TA Geoloogia Instituudi uurimused IX, 95-141. ENSV Teaduste Akadeemia Geoloogia Instituudi Uurimused IX, pp. 95-141.
Sarv, L. 1959. Ordovician ostracodes in the Estonian S.S.R.. ENSV TA Geoloogia Instituudi uurimused IV, 1-210. Eesti NSV Teaduste Akadeemia Geoloogia Instituudi Uurimused IV, pp. 1-210.
Jaanusson, V. 1957. Middle Ordovician Ostracodes of Central and Southern Sweden. Bulletin of Geological Institutions of the University of Uppsala 37, 17, 173-442.
Neckaja, A. I. 1953. Tetradellidy ordovika Pribaltiki i ih stratigraficheskoe znachenie. Trudy Vsesoûznogo Naučno-Issledovatel'skogo Geologo-Razvedočnogo Instituta (VNIGRI) , 309-363. Stratigraphy and fauna of the Ordovician and Silurian West Russian Platform, pp. 309-363.
Öpik, A. 1937. Ostracoda from the Ordovician Uhaku and Kukruse formations of Estonia. Tartu Ülikooli Geoloogia Instituudi Toimetused 50, 1-58.