Dercrib the anatomi and reproduction of Bennettitales?

Bennettitales are an extinct order of seed plants that lived between 252 to 66 million years ago, although some Bennettitales appear to have survived a little later in Tasmania and eastern Australia.
Some were characterized by pinnately compound leaves and thick trunks.

The taxon comprises two groups, the Cycadeoidaceae, represented by Cycadeoidea and Monanthesia which had stout trunks and bisporangiate strobili (cones serving as their reproductive structures), and the Williamsoniaceae including Williamsonia, Williamsoniella, Wielandella and Ischnophyton which had slender, branching trunks and either bisporangiate or monosporangiate strobili. Bennettitales have been placed among the anthophytes and for some time were considered to be close relatives of the flowering plants on account of their flower-like reproductive structures (a whorl of microsporangiate structures that surround an inner receptacle).