Peel, J.S, and E.L Yochelson. 1982. “A Review of Salterella (Phylum Agmata) from the Lower Cambrian in Greenland and Mexico”. Rapport Grønlands Geologiske Undersøgelse 108 (December). Copenhagen, Denmark:31-39. https://doi.org/10.34194/rapggu.v108.7782.