In Landon Creek, the type locality of the Duntroonian Stage, the sequence is as follows (ascending order): McDonald Limestone (lower Whaingaroon); disconformity and bored surface; blocky limestone penetrated by greensand; Kokoamu Greensand (Duntroonian); Otekaike Limestone (Lower Waitakian to Duntroonian) passing laterally into thin rubbly limestone conglomerate; disconformity and bored surface; Gee Greensand (Otaian).