Scientists used plastomic and biogeographical data to determine when different types of cycads first evolved. Their findings challenge previous ideas about when cycads first appeared and where they come from.

Read the original post at https://www.botany.one/2022/02/cycads-studied-to-reconcile-fossil-and-molecular-evidence-for-evolutionary-timescales/

Read the research at https://doi.org/10.1093/aob/mcab118