"Evidence for a single median fin-fold and tail in the Lower Cambrian vertebrate, Haikouichthys ercaicunensis", Journal of Evolutionary Biology, 17 (5), 2004, ss. 1162-1166, doi:10.1111/j.1420-9101.2004.00741.x, PMID15312089
"Evidence for a single median fin-fold and tail in the Lower Cambrian vertebrate, Haikouichthys ercaicunensis", Journal of Evolutionary Biology, 17 (5), 2004, ss. 1162-1166, doi:10.1111/j.1420-9101.2004.00741.x, PMID15312089