It also includes the coastal plain south of Shark Bay nearly to Kalbarri, where it transitions to the Geraldton Sandplains bioregion.

The Zuytdorp Cliffs line the coast from the northern end of Edel Land to the mouth of the Murchison River.

[4] The Tallering subregion includes the Toolonga Plateau, part of the Carnarvon basin, and extends southeastward across the Yilgarn Craton, an uplifted block of ancient crystalline rock.

[4] The vegetation of the Tallering subregion is characterised by woodlands, dominated by species of Eucalyptus, Acacia, and Callitris.

[4] A subspecies of purple-backed fairywren, Malurus assimilis bernieri, is found only on Bernier and Dorre islands, and the black and white fairy wren (Malurus leucopterus leucopterus), a subspecies of white-winged fairywren, is found only on Dirk Hartog Island.

The sandhill frog (Arenophryne rotunda) is a limited-range species found in the Edel subregion and the northern Geraldton Sandplains bioregion.