Canu, F.; Bassler, R. S. (1917). A synopsis of American Early Tertiary Cheilostome Bryozoa. United States National Museum Bulletin, 96: 1-87 page(s): 58 [details]
Bock, P. (2024). World List of Bryozoa. Semihaswellia Canu & Bassler, 1917. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=415970 on 2024-10-15
original descriptionCanu, F.; Bassler, R. S. (1917). A synopsis of American Early Tertiary Cheilostome Bryozoa. United States National Museum Bulletin, 96: 1-87 page(s): 58 [details]
Present Inaccurate Introduced: alien Containing type locality