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
Liang, Y., Hints, O., Tang, P., Cai, C., Goldman, D., Nõlvak, J., Tihelka, E., Pang, K., Bernardo, J., Wang, W. 2020. Fossilized reproductive modes reveal a protistan affinity of Chitinozoa. Geology 48, 12, 1200-1204. DOI:10.1130/G47865.1
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
Nõlvak, J., Bauert, G. 2015. New biostratigraphically important chitinozoans from the Kukruse Regional Stage, Upper Ordovician of Baltoscandia. Estonian Journal of Earth Sciences 64, 3, 218-224. DOI:10.3176/earth.2015.28
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
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
Nõlvak, J. 2010. Distribution of Ordovician chitinozoans. Estonian Geological Sections Bulletin 10, 17-18.
Nestor, V. 2010. Distribution of Silurian chitinozoans. Estonian Geological Sections Bulletin 10, 19-20.
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
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
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
Nõlvak, J. 2007. A new chitinozoan species from the Upper Ordovician of the East Baltic. Estonian Journal of Earth Sciences 56, 1, 63-64.
Grahn, Y., Nõlvak, J. 2007. Ordovician Chitinozoa and biostratigraphy from Skåne and Bornholm, southernmost Scandinavia - an overview and update. Bulletin of Geosciences 82, 1, 11-26. DOI:10.3140/bull.geosci.2007.01.11
Nestor, V. 2007. Chitinozoans in the Wenlock-Ludlow boundary beds of the East Baltic. Estonian Journal of Earth Sciences 56, 2, 109-128.
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
Põldvere, Anne (ed) 2003. Ruhnu (500) drill core. Estonian Geological Sections Bulletin 5, 1-76. 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
Nõlvak, J. 2003. Distribution of Ordovician chitinozoans. Estonian Geological Sections Bulletin 5, 23-25. Geological Survey of Estonia.
Mullins, G. L., Loydell, D. K. 2002. Integrated Lower Silurian chitinozoan and graptolite biostratigraphy of Buttington Brick Pit, Wales. Geological Magazine 139, 1, 89-96. Cambridge University Press. DOI:10.1017/S00167568010059
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
Nõlvak, J. 2001. Distribution of chitinozoans. Estonian Geological Sections Bulletin 3, 8-10. Geological Survey of Estonia.
Nestor, V. 1999. Distribution of chitinozoans in the Llandovery of the Oslo region. Bollettino della Società Paleontologica Italiana 38, 2-3, 227-238.
Nestor, V. 1998. Chitinozoan biofacies of late early Llandovery (Coronograptus cyphus) age in the East Baltic. Proceedings of the Estonian Academy of Sciences. Geology 47, 4, 219-228. DOI:10.3176/geol.1998.4.01
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.
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
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. 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
Nõlvak, J. 1990. Ordovician chitinozoans.Field Meeting Estonia 1990. An Excursion Guidebook , pp. 77-79. Estonian Academy of Sciences.
Nestor, V. 1990. Silurian chitinozoans.Field Meeting Estonia 1990. An Excursion Guidebook , pp. 80-83. Estonian Academy of Sciences.
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. 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
Nestor, V. 1982. New Wenlockian species of Conochitina from Estonia. Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология 31, 3, 105-111. DOI:10.3176/geol.1982.3.04
Nestor, V. 1982. Chitinozoan zonal assemblages (Wenlock, Estonia).Silurian assemblages and biozones in the East Baltic region , pp. 84-96. Valgus.
Nestor, V. 1980. New chitinozoan species from the Lower Llandoverian of Estonia. Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология 29, 3, 98-107. DOI:10.3176/geol.1980.3.02
Nestor, V. 1980. Middle Llandoverian Chitinozoans from Estonia. Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология 29, 4, 136-142. DOI:10.3176/geol.1980.4.03
Nõlvak, J. 1980. Chitinozoans in biostratigraphy of the northern East Baltic Ashgillian. A preliminary report. Acta Palaeontologica Polonica 25, 2, 253-260.
Laufeld, S. 1967. Caradocian Chitinozoa from Dalarna, Sweden. GFF 89, 3, 275-349. DOI:10.1080/11035896709448374
List of species
3. Conochitina argillophila Laufeld, 1974 | Jaagarahu Stage
7. Conochitina cribrosa Nestor, 1982 | Jaagarahu Stage
9. Conochitina decipiens Taugourdeau et de Jekhowsky, 1960 | Middle Ordovician
16. Conochitina fortis Nestor, 1982 | Jaagarahu Stage
20. Conochitina leviscapulae Mullins et Loydell, 2001 | Adavere Stage
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Classification
References based on distribution
- Nestor, V., 2009a Ventspils D-3 borehole Paadla Stage
- Nestor, V., 2009a Ohesaare borehole Rootsiküla Stage
- Nestor, V., 2009a Pavilosta 51 borehole Paadla Stage
- Nestor, V., 2009a Pavilosta 51 borehole Paadla Stage
- Nestor, V., 2009a Pavilosta 51 borehole Gorstian
- Nestor, V., 1994a Ohesaare borehole 342 - 352 Adavere Stage
- Nestor, V., 1994a Ohesaare borehole Jaagarahu Stage
- Nestor, V., 1994a Ruhnu 500 borehole Jaagarahu Stage
- Nestor, V., 1982a Ikla borehole Jaagarahu Stage
- Nestor, V., 1994a Varbla 502 borehole Raikküla Stage
- Nestor, V., 1994a Adavere Stage
- Nestor, V., 1994a Ohesaare borehole Jaagarahu Stage
- Nestor, V., 1994a Ikla borehole Juuru Stage
- Nestor, V., 1994a Ohesaare borehole Adavere Stage
- Nestor, V., 1994a Ohesaare borehole Jaagarahu Stage
- Nestor, V., 1994a Ruhnu 500 borehole Jaagarahu Stage
- Nestor, V., 1994a Ohesaare borehole Jaagarahu Stage
- Nestor, V., 1994a Ohesaare borehole Jaagarahu Stage
- Nestor, V., 1994a Ohesaare borehole Adavere Stage
- Nestor, V., 1994a Varbla 502 borehole Adavere Stage
- Nestor, V., 1994a Ruhnu 500 borehole Raikküla Stage
- Hints, O. et al., 2006 Paatsalu 527 borehole 89 - 109 Raikküla Stage
- Nestor, V., 1994a Kipi borehole Jaani Stage
- Nestor, V., 2007 Ventspils D-3 borehole Paadla Stage
- Loydell et al., 2003 Aizpute 41 borehole Raikküla Stage
- Loydell et al., 2003 Aizpute 41 borehole Juuru Stage
- Loydell et al., 2003 Aizpute 41 borehole Llandovery
- Loydell et al., 2003 Aizpute 41 borehole Adavere Stage
- Loydell et al., 2003 Aizpute 41 borehole Adavere Stage
- Loydell et al., 2003 Aizpute 41 borehole Adavere Stage
- Nestor, V., 1994a Kipi borehole Jaani Stage
- Hints, O. et al., 2006 Jaani Stage
- Nestor, V., 2005 Ruhnu 500 borehole Adavere Stage
- Nestor, V., 2005 Adavere Stage
- Hints, O. et al., 2006 Paatsalu 527 borehole Llandovery
- Nestor, V., 2007 Ventspils D-3 borehole Jaagarahu Stage
- Nestor, V., 2005 Kaugatuma 509 borehole Adavere Stage
- Loydell et al., 2010 Kolka 54 borehole Raikküla Stage
- Nõlvak & Bauert, G., 2006 Kerguta 565 borehole Aseri Stage
- Nõlvak & Bauert, G., 2006 Kerguta 565 borehole Uhaku Stage
- Nõlvak, 2003 Ruhnu 500 borehole Nabala Stage
- Nõlvak, 2003 Viki borehole Uhaku Stage
- Nõlvak, 2003 Ruhnu 500 borehole Kukruse Stage
- Nõlvak, 2003 Ruhnu 500 borehole Lasnamägi Stage
- Nõlvak, 2003 Ruhnu 500 borehole Uhaku Stage
- Nõlvak, 2003 Ruhnu 500 borehole Uhaku Stage
- Nõlvak, 2010a Viki borehole Pirgu Stage
- Nestor, V., 2010 Viki borehole Billingen Stage
- Hints, O. & Nõlvak, 2006 Museum of Art excavation section, Kadriorg Hunneberg Stage
- Nestor, V., 2010 Viki borehole Adavere Stage
- Grahn, 1984 Suhkrumägi outcrop Volkhov Stage
- Laufeld, 1974a Gustavsvik, Gotland Llandovery
- Laufeld, 1974a Munkebos 1, Gotland Wenlock
- Nestor, V., 1994a Ohesaare borehole Jaagarahu Stage
- Laufeld, 1974a Lickershamn 2, Gotland Wenlock
- Laufeld, 1974a Ansarve 3, Gotland Wenlock
- Laufeld, 1974a Lauter 1, Gotland Wenlock
- Laufeld, 1974a Mulde 2, Gotland Wenlock
- Laufeld, 1974a Buske, Gotland Wenlock
- Laufeld, 1974a Sigfride 1, Gotland Wenlock
- Laufeld, 1974a Buske, Gotland Wenlock
- Mullins & Loydell, 2002 Buttington Brick Pit Llandovery
- Grahn, 1984 Suhkrumägi outcrop Volkhov Stage
- Nõlvak, 2001a Valga 10 borehole Lasnamägi Stage
- Nõlvak, 2001a Valga 10 borehole Lasnamägi Stage
- Nõlvak, 2007a Põltsamaa H-39 borehole Pirgu Stage
- Grahn & Nõlvak, 2007b Kardla 570 borehole Porkuni Stage
- Laufeld, 1967 Dalarna, Sweden
- Nõlvak & Bauert, G., 2015 Viljandi 91 borehole 373.3 - 374.3 Kukruse Stage
- Nõlvak & Bauert, G., 2015 Velise V-97 borehole 208.8 - 209.28 Kukruse Stage
- Põldvere, Anne, 2003 (ed) Ruhnu 500 borehole
- Nõlvak et al., 2022 Baldone 80 borehole 9112 - 927 Darriwilian