Check-listy
* Výčet zemí nemusí být kompletní
Odkazy a literatura
[1] Fatka O., Konzalová M. (1995): Microfossils of the Paseky Shale (Lower Cambrian, Czech Republic), Journal of the Czech Geological Society 40/4 [jako Skiagia insigne (Fridrichsone) Downie 1982]
Fatka O., Konzalová M. (1995): Microfossils of the Paseky Shale (Lower Cambrian, Czech Republic), Journal of the Czech Geological Society 40/4 [jako Skiagia insigne (Fridrichsone) Downie 1982]