Chitinozoa
Order

Operculatifera Eisenack, 1931

https://files.geocollections.info/large/03/94/03949f1c-c11b-4bd9-8226-e4d8710a8b57.jpghttps://files.geocollections.info/large/3f/6e/3f6e4416-b895-4ba6-8dae-6da7041e0e74.jpghttps://files.geocollections.info/large/2f/e0/2fe0187c-099d-410d-b572-337ad700fa30.jpghttps://files.geocollections.info/large/82/f1/82f1a20e-e90a-41de-b0d6-a906f5ff2cd8.jpghttps://files.geocollections.info/large/c9/6f/c96f2272-c5cf-4d13-9752-260c648d49fd.jpghttps://files.geocollections.info/large/56/1a/561a9a45-3492-4f15-8ddb-5c2f250498ba.jpghttps://files.geocollections.info/large/da/0c/da0c79b9-4205-4bce-af7b-b0788a344f7e.jpghttps://files.geocollections.info/large/31/ab/31ab1544-917f-4858-a738-d38c5240dd12.jpghttps://files.geocollections.info/large/4d/24/4d246d1a-1082-455e-8cf5-5b68c632ca91.jpghttps://files.geocollections.info/large/8f/72/8f726682-5d75-4a5c-a5ca-07b3521c34dd.jpg
Selection of related publications
Hints, O., Ainsaar, L., Lepland, A., Liiv, M., Männik, P., Meidla, T., Nõlvak, J., Radzevičius, S. 2023. Paired carbon isotope chemostratigraphy across the Ordovician–Silurian boundary in central East Baltic: Regional and global signatures. Palaeogeography, Palaeoclimatology, Palaeoecology 624, 1-17. DOI:10.1016/j.palaeo.2023.111640
Nõlvak, J., Liang, Y., Hints, O. 2022. Early and early Middle Ordovician chitinozoans from the Baldone drill core, central Latvia. Estonian Journal of Earth Sciences 71, 1, 25-43. DOI:10.3176/earth.2022.03
Nõlvak, J., Liang, Y., Hints, O. 2019. Early diversification of Ordovician chitinozoans on Baltica: New data from the Jägala waterfall section, northern Estonia. Palaeogeography, Palaeoclimatology, Palaeoecology 525, 14-24. DOI:10.1016/j.palaeo.2019.04.002
Stouge, S., Bauert, G., Bauert, H., Nõlvak, J., Rasmussen, J. A. 2016. Upper Middle to lower Upper Ordovician chitinozoans and conodonts from the Bliudziai-150 core, southern Lithuania. Canadian Journal of Earth Sciences 53, 8, 781-787. DOI:10.1139/cjes-2015-0205
Männik, P., Loydell, D. K., Nestor, V., Nõlvak, J. 2015. Integrated Upper Ordovician–lower Silurian biostratigraphy of the Grötlingbo-1 core section, Sweden. GFF 137, 3, 226-244. DOI:10.1080/11035897.2015.1042032
Bauert, G., Nõlvak, J., Bauert, H. 2014. Chitinozoan biostratigraphy in the Haljala Regional Stage, Upper Ordovician: a high-resolution approach from NE Estonia. GFF 136, 1, 26-29. DOI:10.1080/11035897.2013.857715
Nestor, V. 2012. A summary and revision of the East Baltic Silurian chitinozoan biozonation. Estonian Journal of Earth Sciences 61, 4, 242-260. DOI:10.3176/earth.2012.4.05
Nestor, V. 2011. Chitinozoan biostratigraphy of the Přidoli Series of the East Baltic. Estonian Journal of Earth Sciences 60, 4, 191-206. DOI:10.3176/earth.2011.4.01
Nõlvak, J. 2010. Distribution of Ordovician chitinozoans. Estonian Geological Sections Bulletin 10, 17-18.
Tammekänd, M., Hints, O., Nõlvak, J. 2010. Chitinozoan dynamics and biostratigraphy in the Väo Formation (Darriwilian) of the Uuga Cliff, Pakri Peninsula, NW Estonia. Estonian Journal of Earth Sciences 59, 1, 25-36. DOI:10.3176/earth.2010.1.02
Loydell, D. K., Nestor, V., Männik, P. 2010. Integrated biostratigraphy of the lower Silurian of the Kolka-54 core, Latvia. Geological Magazine 147, 2, 253-280. DOI:10.1017/S0016756809990574
Nestor, V. 2009. Biostratigraphy of the Ludlow chitinozoans from East Baltic drill cores. Estonian Journal of Earth Sciences 58, 3, 170-184. DOI:10.3176/earth.2009.3.02
Kaljo, D., Hints, L., Männik, P., Nõlvak, J. 2008. The succession of Hirnantian events based on data from Baltica: brachiopods, chitinozoans, conodonts, and carbon isotopes. Estonian Journal of Earth Sciences 57, 4, 197-218. DOI:10.3176/earth.2008.4.01
Nestor, V. 2007. Chitinozoans in the Wenlock-Ludlow boundary beds of the East Baltic. Estonian Journal of Earth Sciences 56, 2, 109-128.
Rubel, M., Hints, O., Männik, P., Meidla, T., Nestor, V., Sarv, L., Sibul, I. 2007. Lower Silurian biostratigraphy of the Viirelaid core, western Estonia. Estonian Journal of Earth Sciences 56, 4, 193-204. DOI:10.3176/earth.2007.01
Goldman, D., Leslie, S. A., Nõlvak, J., Young, S. 2007. The Black Knob Ridge section, southeastern Oklahoma, USA: The global stratotype-section and point (GSSP) for the base of Katian Stage of the Upper Ordovician series. Acta Palaeontologica Sinica 46, Suppl, 144-154.
Hints, O., Killing, M., Männik, P., Nestor, V. 2006. Frequency patterns of chitinozoans, scolecodonts, and conodonts in the upper Llandovery and lower Wenlock of the Paatsalu core, western Estonia. Proceedings of the Estonian Academy of Sciences. Geology 55, 2, 128-155. DOI:10.3176/GEOL.2006.2.04
Nõlvak, J., Bauert, G. 2006. Distribution of Ordovician chitinozoans. Estonian Geological Sections Bulletin 7, 9-11. Geological Survey of Estonia.
Nestor, V. 2005. Chitinozoans of the Margachitina margaritana Biozone and the Llandovery-Wenlock boundary in West Estonian drill cores. Proceedings of the Estonian Academy of Sciences. Geology 54, 2, 87-111. DOI:10.3176/geol.2005.2.02
Loydell, D. K., Nestor, V. 2005. Integrated graptolite and chitinozoan biostratigraphy of the upper Telychian (Llandovery, Silurian) of the Ventspils D-3 core, Latvia. Geological Magazine 142, 4, 369-376. DOI:10.1017/S0016756805000531
Nõlvak, J. 2003. Distribution of Ordovician chitinozoans. Estonian Geological Sections Bulletin 5, 23-25. Geological Survey of Estonia.
Loydell, D. K., Männik, P., Nestor, V. 2003. Integrated biostratigraphy of the lower Silurian of the Aizpute-41 core, Latvia. Geological Magazine 140, 2, 205-229. DOI:10.1017/S0016756802007264
Märss, T. 2003. Distribution of Silurian agnathans and fish microremains. Estonian Geological Sections Bulletin 5, 14-15. Geological Survey of Estonia.
Modliński, Z., Nõlvak, J., Szymanski, B. 2002. Chitinozoan biozonation of the Ordovician succession in the borehole Proniewicze IG 1 (NE Poland). Przegląd Geologiczny 50, 1, 67-74.
Nestor, H., Nestor, V. 2002. Upper Llandovery to middle Wenlock (Silurian) lithostratigraphy and chitinozoan biostratigraphy in southwestern Estonia and northermost Latvia. Proceedings of the Estonian Academy of Sciences. Geology 51, 2, 67-87. DOI:10.3176/geol.2002.2.01
Nestor, V., Einasto, R., Loydell, D. K. 2002. Chitinozoan biostratigraphy and lithological characteristics of the Lower and Upper Visby boundary beds in the Ireviken 3 section, Northwest Gotland. Proceedings of the Estonian Academy of Sciences. Geology 51, 4, 215-226. DOI:10.3176/geol.2002.4.02
Nestor, V. 1999. Distribution of chitinozoans in the Llandovery of the Oslo region. Bollettino della Società Paleontologica Italiana 38, 2-3, 227-238.
Paris, F., Nõlvak, J. 1999. Biological interpretation and paleobiodiversity of a cryptic fossil group: The “chitinozoan animal”. Geobios 32, 2, 315-324. DOI:10.1016/S0016-6995(99)80045-X
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
Nestor, V. 1994. Early Silurian chitinozoans of Estonia and North Latvia. pp. 1-163. Estonian Academy Publishers.
Nõlvak, J., Grahn, Y. 1993. Ordovician chitinozoan zones from Baltoscandia. Review of Palaeobotany and Palynology 79, 245-269. DOI:10.1016/0034-6667(93)90025-P
Nestor, V. 1993. Chitinozoans at the Llandovery-Wenlock transition in the Jaagarahu core, Estonia. Proceedings of the Estonian Academy of Sciences. Geology 42, 4, 167-175. DOI:10.3176/geol.1993.4.04
Nestor, V. 1991. On the distribution of aberrant forms of chitinozoans in the Silurian of Estonia and West Latvia. Proceedings of the Estonian Academy of Sciences. Geology 40, 3, 96-99. DOI:10.3176/geol.1991.3.02
Nestor, V. 1990. Silurian chitinozoans.Field Meeting Estonia 1990. An Excursion Guidebook , pp. 80-83. Estonian Academy of Sciences.
Nõlvak, J. 1990. Ordovician chitinozoans.Field Meeting Estonia 1990. An Excursion Guidebook , pp. 77-79. Estonian Academy of Sciences.
Nestor, V. 1984. Distribution of Chitinozoans in the Late Llandoverian Rumba Formation (Pentamerus Oblongus Beds) of Estonia. Review of Palaeobotany and Palynology 43, 1-3, 145-153. DOI:10.1016/0034-6667(84)90030-7
Grahn, Y. 1984. Ordovician chitinozoa from Tallinn, northern Estonia. Review of Palaeobotany and Palynology 43, 1-3, 5-31. DOI:10.1016/0034-6667(84)90025-3
Nestor, V. 1982. Chitinozoan zonal assemblages (Wenlock, Estonia).Silurian assemblages and biozones in the East Baltic region , pp. 84-96. Valgus.
Paris, F. 1981. Les Chitinozoaires dans le Paléozoïque de sud-ouest de l'Europe: cadre géologique, étude systématique, biostratigraphie. pp. 1-496. Rennes: Société géologique et minéralogique de Bretagne.
Nõlvak, J. 1980. Chitinozoans in biostratigraphy of the northern East Baltic Ashgillian. A preliminary report. Acta Palaeontologica Polonica 25, 2, 253-260.
Laufeld, S. 1974. Silurian Chitinozoa from Gotland. Fossils and Strata 5, 1-130.
List of species
3. Belonechitina intermedia (Eisenack, 1955) | Kuressaare StageKaugatuma Stage
7. Bursachitina nana (Nestor, 1994) | Adavere StageJaani Stage
10. Calpichitina acollaris (Eisenack, 1959) | Jaani StageJaagarahu Stage
11. Calpichitina complanata (Eisenack, 1932) | Kunda StagePirgu Stage
12. Calpichitina densa (Eisenack, 1962) | Adavere StageJaani Stage
14. Calpichitina lata (Schallreuter, 1963) | Haljala StageVormsi Stage
15. Calpichitina lecaniella (Eisenack, 1965) | Kukruse StageHaljala Stage
17. Calpichitina opaca (Laufeld, 1974) | Adavere StageJaani Stage
19. Calpichitina velata (Wrona, 1980) | Kaugatuma StageOhesaare Stage
20. Cingulochitina baltica Nestor, 1994 | Jaagarahu StagePaadla Stage
Loading...
Classification
Organism groupBiota
KingdomAnimalia
ClassChitinozoa
OrderOperculatifera
FamilyDesmochitinidae
OrderProsomatifera