Chainodictyon, Foerste, 1887

Ernst, Andrej, Claussen, Anna Lene, Seuss, Barbara & Wyse Jackson, Patrick N., 2022, Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA, Palaeontologia Electronica (a 15) 25 (2), pp. 1-56 : 18

publication ID

https://doi.org/ 10.26879/1174

publication LSID

lsid:zoobank.org:pub:A4A07D50-3DDB-4E45-A255-1ECCF45F147A

DOI

https://doi.org/10.5281/zenodo.11032556

persistent identifier

https://treatment.plazi.org/id/03C387F1-9A0D-3969-2DFF-02EDF4E44933

treatment provided by

Felipe

scientific name

Chainodictyon
status

 

Genus CHAINODICTYON Foerste, 1887 View in CoL

Type species. Chainodictyon laxum Foerste, 1887 View in CoL , by original designation. Pennsylvanian ( Upper Carboniferous ) ; USA, Ohio .

Diagnosis. Reticulate colonies, regularly anastomosing. Flattened branches bearing 3–12 rows of autozooecia. Vestibule weakly developed. Diaphragms rare. Hemisepta absent. Oval apertures arranged in a diagonal pattern. Autozooecial chambers rhombic in mid-tangential section. Styles absent. Leptozooecia common on the obverse surface of branches. Reverse wall very thin.

Remarks. Chainodictyon Foerste, 1887 , differs from Rhombocladia Rogers, 1900 , by having a reticulate colony form instead of a ramose one and by the absence of hemisepta. Chainodictyon differs from Kallodictyon Morozova, 1981 , in its development of a thin reverse wall and by absence of leptozooecia on the reverse surface of branches.

Occurrence. Mississippian of Kazakhstan and Russia, Pennsylvanian of USA, and Russia, and Lower Permian of Russia.

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF