Family
Cyrtograptidae Bouček, 1933
Selection of related publications
Štorch, P., Manda, Š. 2019. Little known Homerian (lower Silurian) graptolites from Kosov quarry near Beroun, the Czech republic. Fossil Imprint 75, 1, 44-58. DOI:10.2478/if-2019-0003
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
Radzevičius, S. 2013. Silurian graptolite biozones of Lithuania: present and perspectives. Geologija 55, 2(82), 41-49. DOI:10.6001/geologija.v55i2.2757
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
Loydell, D. K., Jeppsson, L. 2006. Graptolites from the Lower and Upper Visby formations of NW Gotland. GFF 128, 2, 159-160. DOI:10.1080/11035890601282159
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
Loydell, D. K., Kaljo, D., Männik, P. 1998. Integrated biostratigraphy of the lower Silurian of the Ohesaare core, Saaremaa, Estonia. Geological Magazine 135, 6, 769-783. DOI:10.1017/S0016756898001423
Paškevičius, J. 1979. Biostratigraphy and Graptolites of the Lithuanian Silurian. pp. 1-267. Mokslas.
Ulst, R. Ž. 1974. The early sequence of Pristiograpts in conterminous deposits of Wenlock and Ludlow of the Middle Pribaltic.Graptolites of the USSR , pp. 105-122. Nauka.
Gailite, L. K., Rybnikova, M. V., Ulst, R. Ž. 1967. Stratigrafiâ, fauna i usloviâ obrazovaniâ silurijskih porod Srednej Pribaltiki. pp. 1-304. Zinatne.
List of species
1. Cyrtograptus bohemicus Bouček, 1931 | Wenlock
2. Cyrtograptus carruthersi Lapworth, 1876 | Wenlock
3. Cyrtograptus centrifugus Bouček, 1931 | Silurian
4. Cyrtograptus egregius Sobolevskaya, 1997 | Adavere Stage
5. Cyrtograptus ellesae Gortani, 1923 | Wenlock
6. Cyrtograptus hamatus (Baily, 1862) | Wenlock
7. Cyrtograptus linnarssoni Lapworth, 1880 | Wenlock
8. Cyrtograptus lundgreni Tullberg, 1883 | Wenlock
9. Cyrtograptus metatheca | Silurian
10. Cyrtograptus murchisoni Carruthers, 1867 | Wenlock
11. Cyrtograptus perneri Bouček, 1933 | Wenlock
12. Cyrtograptus radians Törnquist, 1887 | Wenlock
13. Cyrtograptus rigidus Tullberg, 1883 | Wenlock
14. Cyrtograptus trilleri Eisel | Wenlock
15. Lapworthograptus grayae (Lapworth, 1876) | Silurian
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Axonophora |
| Dichograptina | |
| Glossograptina | |
| Graptodendroidina | |
| Family | Cryptograptidae |
| Cyrtograptidae | |
| Genus | Cyrtograptus |
| Lapworthograptus | |
| Family | Dicaulograptidae |
| Glyptograptidae | |
| Linograptidae | |
| Genus | Corymborgaptus |