Subfamily
Lagenochitininae Paris, 1981
Selection of related publications
Gotsenko, A. 2025. Ordoviitsiumi kitiinikute levik ja biostratigraafia Baltinava puuraugus Ida-Lätis [Bakalaureusetöö. Juhendaja: O. Hints]. pp. 1-44.  TalTech Loodusteaduskond. 
Männik, R. 2024. Siluri ajastu Lau sündmuse mõju mikrofossiilidele Bebirva 111 puuraugus Leedus [Bakalaureusetöö. Juhendajad: O. Hints ja T. Meidla]. pp. 1-54.
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., Nõlvak, J., Xu, H., Chen, Y., Hints, O. 2022. Revision of Ordovician chitinozoan Lagenochitina esthonica sensu lato: morphometrics, biostratigraphy and paleobiogeography.  Journal of Paleontology   96,   1,   46-60. DOI:10.1017/jpa.2021.79
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
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. 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.
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
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., Nõlvak, J. 2006. Early Ordovician scolecodonts and chitinozoans from Tallinn, North Estonia.  Review of Palaeobotany and Palynology   139,   1-4,   189-209. DOI:10.1016/j.revpalbo.2006.01.004
Nõlvak, J., Bauert, G. 2006. Distribution of Ordovician chitinozoans.  Estonian Geological Sections Bulletin   7,      9-11.  Geological Survey of Estonia. 
Märss, T. 2003. Distribution of Silurian agnathans and fish microremains.  Estonian Geological Sections Bulletin   5,      14-15.  Geological Survey of Estonia. 
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
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
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. 1982. New chitinozoans of the genera Ancyro-, Gotlando- and Sphaerochitina from the Wenlockian of Estonia.  Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология   31,   4,   146-151. DOI:10.3176/geol.1982.4.04
Nõlvak, J. 1980. Chitinozoans in biostratigraphy of the northern East Baltic Ashgillian. A preliminary report.  Acta Palaeontologica Polonica   25,   2,   253-260.
Eisenack, A. 1976. Mikrofossilien aus dem Vaginatenkalk von Hälludden, Öland.  Palaeontographica   Abt A,   154,   181-203.
List of species
4. Lagenochitina dalbyensis (Laufeld, 1967) | Haljala Stage
5. Lagenochitina deunffi Paris, 1974 | Haljala Stage
8. Lagenochitina longiformis (Obut, 1995) | Hunneberg Stage
9. Lagenochitina megaesthonica Liang, Nõlvak et Hints, 2021 | Middle Ordovician
16. Sphaerochitina concava Laufeld, 1974 | Rootsiküla Stage
17. Sphaerochitina dubia Eisenack, 1968 | Paadla Stage
18. Sphaerochitina impia Laufeld, 1974 | Paadla Stage
20. Sphaerochitina lycoperdoides Laufeld, 1974 | Rootsiküla Stage
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Class | Chitinozoa | 
| Order | Prosomatifera | 
| Family | Lagenochitindae | 
| Subfamily | Ancyrochitininae | 
| Angochitininae | |
| Cyathochitininae | |
| Lagenochitininae | |
| Genus | Alhajrichitina | 
| Lagenochitina | |
| Saharochitina | |
| Sphaerochitina | |
| Subfamily | Pellichitininae | 
| Genus | Vitreachitina |