Damage caused by insects feeding on ginkgoalean fruit, very rare

There is evidence that these four effects are nutritional, the margins have small protrusions, which are formed as a result of the drying of the seed coat, the flesh of the fruit of such plants is thin, so it was a suitable destination for feeding and even laying eggs of insects. 

For the first time in the world, fossils of Pterophyllum attached to its branches have been found. These findings prove that three leaves grow at the tip of this plant, buds emerge from the middle of the three leaves, and previous generations are more or less in place. The shrub of this plant probably grew to 2 meters and is considered a miniature tree, although it may have grown to several meters more. (For bavieri)

Therefore, it can be said that Williamsoniaceae was one of the most evolved plants of the Late Triassic-Early Jurassic The structural differences between the genera seem to be large.