Rugosa

Fletcheriidae Zittel, 1876

Selection of related publications
Hill, D. 1981. Rugosa and Tabulata. Treatise on Invertebrate Paleontology. Part F. Coelenterata. Supplement 1., pp. F1-F378.
Ivanovskiy, A. B. 1965. Drevnejšie rugozy.