Vertebrate micro-remains with new thelodont and acanthodian taxa from the Devonian Parke Siltstone of the Amadeus Basin, Northern Territory, Australia

Microvertebrate remains from the N'Dhala Member of the Parke Siltstone (Pertnjara Group) in the N'Dhala Gorge area of the northeastern Amadeus Basin, Northern Territory, comprise scales from a new agnathan turiniid thelodont and stem chondrichthyan acanthodian, along with osteichthyan teeth, scales, and bones, and possible placoderm and actinopterygian dermal bone fragments. Comparisons with assemblages recorded from elsewhere in Australia and Gondwana support a late Early Devonian to early Middle Devonian age. The N'Dhala Member fossils show some similarities to material recovered from the Canning Basin in Western Australia, and the Hatchery Creek Group in southeastern New South Wales.