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Cyclotrypa collina (Ulrich, 1890)

Cyclotrypa collina
Cyclotrypa collina

Scientific Classification

Kingdom: Animalia
Phylum: Bryozoa
Class: Stenolaemata
Order: Cystoporata
Family: Fistulliporidae
Genus: Cyclotrypa
Species: Cyclotrypa collina (Ulrich, 1890)

Information

Geological Range

Middle Devonian

Paleogeographic Distribution

Wisconsin

Stratigraphic Occurrences

Milwaukee Formation
Lindwurm Member

References

Owen (1890): p. 478.

Owen (1896): p. 269.

Cleland (1911): p. 60.

Gass et al. (2019): p. 46.

Remarks

From Cleland (1911, p. 60): “A large portions of a circular expansion 50 or more mm. in diameter, preserved as a mold … C. collina is readily distinguished from associated fistulioporoids at the type locality, Buffalo, Iowa by the shape of the zooarium, the small zooecia (8 in 3 mm) and the absence of lunaria.”

Online Resources

[Biodiversity Heritage Library](https://www.biodiversitylibrary.org/name/Cyclotrypa_collina_(Ulrich%2c_1890)

Media

Images

Photograph of fossil of Cyclotrypa collina
Cyclotrypa collina from the Milwaukee Fm., Lindwurm Mbr. of the Milwaukee County, Wisconsin (MPM P15841).

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Ascodictyon stellatum
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