Cycadeoidea
Cycadeoidea is an extinct order of seed plants that flourished during the Mesozoic Era, particularly from the Late Triassic to the Late Cretaceous periods, approximately 220 to 66 million years ago. These plants are notable for their cycad-like appearance, which includes a robust trunk, pinnate or palmate leaves, and reproductive structures resembling cones. Cycadeoidea is often considered a basal group within the cycad order (Cycadales), though some classifications treat it as a distinct lineage closely related to modern cycads.
Fossil evidence of Cycadeoidea is primarily found in the form of leaves, stems, and reproductive organs, with
Cycadeoidea plants likely played significant ecological roles in their environments, serving as food sources for herbivorous