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Chasmatopora
Scientific classification
Kingdom:	Animalia
Phylum:	Bryozoa
Class:	Stenolaemata
Order:	Fenestrida
Family:	Phylloporinidae
Genus:	Chasmatopora; d'Orbigny, 1849

Chasmatopora

Last updated February 27, 2026

Chasmatopora is an extinct genus of bryozoans which existed in what is now Mongolia, China, Estonia, Russia, Poland, Argentina, the United States and Canada. It was described by Alcide d'Orbigny in 1849, and the type species is Chasmatopora tenella, which was originally described as a species of Retepora by Eichwald in 1842.^[1]

Species

Chasmatopora apertaKopajevich, 1984
Chasmatopora disparilisLiu, 1980
Chasmatopora extensaLiu, 1980
Chasmatopora flexaZheng, 1990
Chasmatopora livonica(Nekhoroshev, 1960)
Chasmatopora moyeroensisNekhoroshev, 1955
Chasmatopora pusillaAstrova, 1965
Chasmatopora silurica(Kopaevich, 1975)
Chasmatopora sublaxaUlrich, 1890
Chasmatopora hypnoides(Sharpe, 1853)
Chasmatopora tenella(Eichwald, 1842)
Chasmatopora tricellata(Nekhoroshev, 1955)
Chasmatopora rossaeErnst & Carrera, 2012^[2]

References

↑ Chasmatopora at www.bryozoa.net.
↑ Andrej Ernst & Marcelo Carrera (2012). "Upper Ordovician (Sandbian) bryozoan fauna from Argentine Precordillera". Journal of Paleontology . 86 (5): 721–752. doi:10.1666/12-024.1. hdl: 11336/52220 . S2CID 86306266.

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[1] Chasmatopora at www.bryozoa.net.

[ErnstandCarrera-2] Andrej Ernst & Marcelo Carrera (2012). "Upper Ordovician (Sandbian) bryozoan fauna from Argentine Precordillera". Journal of Paleontology . 86 (5): 721–752. doi:10.1666/12-024.1. hdl: 11336/52220 . S2CID 86306266.

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