Frýda, J., R. B. Blodgett, A. C. Lenz, and B. Frýdová. “Jardamarekia enigma, a New Early Devonian Tryblidioidean from Royal Creek Area (Yukon Territory, Canada), and Paleobiogeography of the Early Devonian of Northwestern Canada”. Zootaxa, vol. 2905, no. 1, June 2011, pp. 57–62, doi:10.11646/zootaxa.2905.1.4.