Genus

Sphaerochitina Eisenack, 1955

Aiheeseen liittyvät julkaisut

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

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

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

Nestor, V. 2007. Chitinozoans in the Wenlock-Ludlow boundary beds of the East Baltic. Estonian Journal of Earth Sciences 56, 2, 109-128.

Märss, T. 2003. Distribution of Silurian agnathans and fish microremains. Estonian Geological Sections Bulletin 5, 14-15. 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.

Nestor, V. 1990. Silurian chitinozoans. Field Meeting Estonia 1990. An Excursion Guidebook, pp. 80-83. Estonian Academy of Sciences.

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

Laufeld, S. 1974. Silurian Chitinozoa from Gotland. Fossils and Strata 5, 1-130.

List of species

1. Sphaerochitina acanthifera (Eisenack, 1955) | Paadla Stage→Kaugatuma Stage

2. Sphaerochitina concava Laufeld, 1974 | Rootsiküla Stage

3. Sphaerochitina dubia Eisenack, 1968 | Paadla Stage

4. Sphaerochitina impia Laufeld, 1974 | Paadla Stage

5. Sphaerochitina indecora Nestor, 1982 | Jaagarahu Stage→Rootsiküla Stage

6. Sphaerochitina lycoperdoides Laufeld, 1974 | Rootsiküla Stage

7. Sphaerochitina scanicus Grahn, 1996 | Paadla Stage

8. Sphaerochitina silurica Grahn, Pereira et Bergamaschi, 2000 | Raikküla Stage

9. Sphaerochitina sphaerocephala (Eisenack, 1932) | Kuressaare Stage→Ohesaare Stage

Luokittelu

Organism group	Biota
Kingdom	Animalia
Class	Chitinozoa
Order	Prosomatifera
Family	Lagenochitindae
Subfamily	Lagenochitininae
Genus	Alhajrichitina
	Lagenochitina
	Saharochitina
	Sphaerochitina
Species	acanthifera
	concava
	dubia
	impia
	indecora
	lycoperdoides
	scanicus
	silurica
	sphaerocephala
unranked	Sphaerochitina? latviensis