The three Agathis species in north Queensland occur in Tropical Lowland Semievergreen Rain Forest and Tropical Lower Montane Rain Forest. The south Queensland, New Caledonian, south New Hebridean and Fijian forests which
contain Agathis are Subtropical and have fewer angiosperm species than Tropical Rain Forest. In all these places except south Queensland Agathis occurs in the Lower Montane as well as Lowland Formation.