Taxon - Links and literature
Mikuláš R. (1991): Trace fossils from siliceous concretions in the Šárka and Dobrotivá Formations (Ordovician, central Bohemia), Časopis pro mineralogii a geologii 36 (1) 29-38 [as Planolites beverleyensis (Billings, 1862)]
Mikuláš R. (2000): Trace fossils from the Cambrian of the Barrandian area, Czech Geological Survey Special Papers, 12, 1-29 [as Planolites beverleyensis (Billings, 1862)]