Evolutionary relationships of coccidia from the green turtles (Chelonia mydas) in eastern Australia inferred by distance analysis of 18S rRNA sequences. Percentage support (>50%) from 1,000 pseudoreplicates from distance, maximum likelihood, and parsimony analysis, respectively, is indicated at the left of the support node (‘_'=value was <50%). The KT956977 sequence identified from a North American leatherback turtle fecal sample is closely related to KT956976 and was omitted here.