Check-listy
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Odkazy a literatura
[1] Štorch, P. & Kraft, P. (2009): Graptolite assemblages and stratigraphy of the lower Silurian Mrákotín Formation, Hlinsko Zone, NE interior of the Bohemian Massif (Czech Republic), Bulletin of Geosciences 84(1), 51–74 [jako Parapetalolithus ovatus (Barrande, 1850)]
Štorch, P. & Kraft, P. (2009): Graptolite assemblages and stratigraphy of the lower Silurian Mrákotín Formation, Hlinsko Zone, NE interior of the Bohemian Massif (Czech Republic), Bulletin of Geosciences 84(1), 51–74 [jako Parapetalolithus ovatus (Barrande, 1850)]