Belongs within: Spermatophyta.Contains: Gnetophyta. The Erdtmanithecales are a group of Cretaceous plants known from reproductive structures and seeds associated with Eucommiidites pollen; vegetative structures have not yet been identified for the group. The Bennettitales were a group of superficially cycad-like plants that lived during the Mesozoic. Bennettitales had superficially flower-like reproductive structures, but debate continues… Continue reading Pan-Gnetophyta