Taxon - Links and literature
Štorch P., Mergl M. (1989): Králodvor/Kosov boundary and the late Ordovician environmental changes in the Prague Basin (Barrandian area, Bohemia), Sbor. geol. věd, Geologie 44 [as Lingula incongrua (Barrande)]
Havlíček V., Vaněk J. (1966): The Biostratigraphy of the Ordovician of Bohemia, Sborník geologických věd, Paleontologie, 8 [as Lingulella incongrua (Barr.)]