Fletcher, T.P, A.K Higgins, and J.S Peel. 1988. “A Balto-Scandian Middle Cambrian Fauna from Peary Land, North Greenland”. Rapport Grønlands Geologiske Undersøgelse 137 (December). Copenhagen, Denmark:118-18. https://doi.org/10.34194/rapggu.v137.8010.