Hofmann, Hans J. An alternative interpretation of the Ediacaran (Precambrian) chondrophore Chondroplon Wade. Alcheringa. 1988, 12 (4): 315–318. doi:10.1080/03115518808619130.
Bobrovskiy, Ilya; Hope, Janet M.; Ivantsov, Andrey; Nettersheim, Benjamin J.; Hallmann, Christian; Brocks, Jochen J. Ancient steroids establish the Ediacaran fossil Dickinsonia as one of the earliest animals. Science. 20 September 2018, 361 (6408): 1246–1249. doi:10.1126/science.aat7228.