Agathis jurassica: Fossil Conifer of the Talbragar Fish Beds

This episode describes "Agathis" jurassica, a prehistoric coniferous tree identified through fossils found in the Talbragar Fish Beds of New South Wales. These fossils consist of siliceous impressions preserved by volcanic ash in what was once a lush Jurassic lake environment. The tree's taxonomic history is complex, as it was originally categorized as Podozamites lanceolatus before being moved to the genus Agathis in 1981. More recent scientific reviews have questioned this placement, often referring to the species as Podozamites jurassica instead. Physical characteristics of the plant include lanced leaves with parallel veins and cylindrical reproductive cones. Today, the site remains a significant source of information regarding the ancient flora and ecosystem of Gondwana.