Cyclotrypa, Ulrich, 1896

Ernst, Andrej, 2016, Bryozoan fauna from the Permian (Artinskian-Kungurian) Zhongba Formation of southwestern Tibet, Palaeontologia Electronica (1946) 51 (9), pp. 1-59 : 13

publication ID	https://doi.org/ 10.26879/585
publication LSID	lsid:zoobank.org:pub:6F0DE44D-32BD-4882-9C38-FF76446D15EA
persistent identifier	https://treatment.plazi.org/id/2F15F14D-FF9C-FF96-045F-A92CFEEEFA41
treatment provided by	Felipe
scientific name	Cyclotrypa
status

Treatment

Genus CYCLOTRYPA Ulrich, 1896 View in CoL

Type species. Fistulipora communis Ulrich, 1890 . Middle Devonian; Iowa, USA .

Diagnosis. Encrusting colonies, often with multiple overgrowths. Cylindrical autozooecia with thin walls and complete diaphragms. Autozooecial apertures rounded. Lunaria absent. Autozooecia separated by vesicular skeleton. Acanthostyles occurring in roofs of vesicles. Low maculae often developed.

Remarks. Cyclotrypa Ulrich, 1896 differs from Fistulipora M‘Coy, 1849 and Eridopora Ulrich, 1882 in the absence of lunaria.

Occurrence. Silurian to Permian; Europe, North America, Asia.