Family
Hexagonellidae Crockford, 1947
Aiheeseen liittyvät julkaisut
Koromyslova, A. V., Fedorov, P. V. 2021. The oldest bifoliate cystoporate and two other bryozoan taxa from the Dapingian (Middle Ordovician) of north-western Russia. Journal of Paleontology 95, 1, 24-39. DOI:10.1017/jpa.2020.73
Gorjunova, R. V. 1996. Phylogeny of the Paleozoic bryozoans. Transactions of the Paleontological Institute (PIN) 267, 1-163. Nauka.
Gorjunova, R. V. 1992. Morphology and system of Paleozoic bryozoans. Transactions of the Paleontological Institute (PIN) 251, 1-152. Nauka.
Männil, R. M. 1959. Questions of stratigraphy and bryozoans of the Ordovician of Estonia. pp. 1-852. Institut Geologii Akademii Nauk Estonskoi SSR.
Bassler, R. S. 1911. The Early Paleozoic Bryozoa of the Baltic Provinces. Bulletin of the US National Museum 77, 1-382.
List of species
2. Pakridictya maculata Männil, 1992 | Kunda Stage
3. Planopora volkhovensis Koromyslova et Fedorov, 2020 | Dapingian
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Bryozoa |
| Class | Stenolaemata |
| Superorder | Palaeostomata |
| Order | Cystoporata |
| Suborder | Hexagonellina |
| Family | Hexagonellidae |
| Genus | Coscinotrypa |
| Pakridictya | |
| Planopora | |
| Family | Rhinoporidae |