A family of Hemicosmitoida with four basals, six infra-laterals, eight laterals and a periproct on the oral surface; with three main ambulacra each with one to five arms.
Selection of related publications
Regnéll, G. 1945.
Non-Crinoid Pelmatozoa from the Paleozoic of Sweden. A taxonomic study.Meddelanden från Lunds Geologisk-Mineralogiska Institution108,
1-255.