Taxon - Odkazy a literatura
Orbaspina chlupaci Mergl, 2003 Mergl M. (2003): Orbaspina chlupaci sp. nov., a new siphonotretid brachiopod from the Silurian of the Barrandian area, Bohemia, Bulletin of Geosciences, Vol. 78, No. 4, 419–421 [jako Orbaspina chlupaci Mergl, 2003]