Palissyales
Palissyales are an extinct order of conifers, known from the Mesozoic. They are best known from the genus "Palissya", which is found in Laurasia and Eastern Gondwana dating from the Late Triassic to Early Cretaceous. The only other confirmed genus of the family, "Stachyotaxus" known from the Late Triassic of the Northern Hemisphere. The genus "Knezourocarpon" from the Jurassic of Australia has also been tentatively considered a member of the order. The cone of the best known genus "Palissya" is noted for its unusual construction, which is borne on a large bract (modified leaf), and consists of two parallel  rows of ovules that run along the midline of the adaxial surface of the bract which are encased in cup-like structures formed by scales. The bracts are helically arranged around an axis, forming a compound catkin-like structure. The seeds are thin-walled were likely only viable for a short period of time, and were likely adapted to wind dispersal. "Palissya" has been considered in some aspects to be similar to some Paleozoic Voltziales, as well as Taxaceae and Podocarpaceae.