Cycadeoidaceae is a family of bennettitalean plants which flourished in the Mesozoic era. Two genera, Cycadeoidea and Monanthesia, are currently recognised though most species are poorly known.[1] They had a similar morphology to cycads, with thick, branchless trunks covered in scale leaves.
References
^Watson, Joan; Lydon, Susannah J (2004). "The bennettitalean trunk genera Cycadeoidea and Monanthesia in the Purbeck, Wealden and Lower Greensand of southern England: A reassessment". Cretaceous Research. 25: 1–26. doi:10.1016/j.cretres.2003.10.003.
