Taxon - Links and literature
Ernst A. (2008): Trepostome and Cryptostome Bryozoans from the Koněprusy Limestone (Lower Devonian, Pragian) of Zlatý Kůň (Czech Republic), Rivista Italiana di Paleontologia e Stratigrafia, 114, 3 [as Monotrypa undulata (Nicholson, 1879)]