Taxon - Odkazy a literatura
druh
Circotheca smetanai Valent, Fatka, Szabad, Micka & Marek, 2012 †
Paleobiology Database [287286]
Paleobiology Database [https://paleobiodb.org/] [jako Circotheca smetanai Valent, Fatka, Szabad, Micka & Marek, 2012]
Datum citace: 30. leden 2016
Valent M., Fatka O., Szabad M., Micka V. & Marek L. (2012): Two new orthothecids from the Cambrian of the Barrandian area (Hyolitha, Skryje-Týřovice Basin, Czech Republic), Bulletin of Geosciences 87(2) , 241–248. Czech Geological Survey, Prague. ISSN 1214-1119 [jako Circotheca smetanai Valent, Fatka, Szabad, Micka & Marek, 2011]
Valent M., Fatka O., Szabad M., Micka V. & Marek L. (2015): Skryjelites auritus gen. et sp. nov. and Quasimolites quasimodo gen. et sp. nov. - two new middle Cambrian hyolithids (?Mollusca) from the Czech Republic, Zootaxa, 4007 (3), 419-426. [jako Circotheca smetanai Valent et al., 2012]