“…Reproductive organs revealed that one of the resulting genera, Autunia, is a peltasperm (Kerp, 1988). Other callipterids also appear to be peltasperms (e.g., Naugolnykh and Kerp, 1996;Poort and Kerp, 1990) and it can be assumed that this is true for most if not all callipterids. Peltasperms are related to, and possibly descended from, the callistophytalean pteridosperms (Crane, 1985;Hilton and Bateman, 2006).…”