Temporal range: Permian–Eocene
The Peltaspermales are an extinct order of plants belonging to Pteridospermatophyta, or seed ferns. It is unclear whether they form a natural group of organisms as they are poorly known. It has been suggested that they survived the Cretaceous–Paleogene extinction event.
- Taylor, Edith L.; Taylor, Thomas N.; Krings, Michael (2009). Paleobotany: The Biology and Evolution of Fossil Plants. Academic Press. pp. 639–48. ISBN 9780080557830.
- McLoughlin S.; Carpenter R.J.; Jordan G.J.; Hill R.S. (2008). "Seed ferns survived the end-Cretaceous mass extinction in Tasmania". American Journal of Botany. 95: 465–471. doi:10.3732/ajb.95.4.465.
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