Peltaspermales

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.[2] They span from the Late Carboniferous to the Early Jurassic. It includes at least one family, Peltaspermaceae, which spans from the Permian to Early Jurassic.[3] Along with these, two informal groups (the "Supaioids"[4] and the "Comioids"[5]) of uncertain taxonomic affinities exist, each centered around a specific genus ; Supaia and Comia. In 2009, a new genus from the Lower Permian/Leonardian Clear Fork Group was erected and named Auritifolia waggoneri. It was assigned to the "comioids" based on its venation pattern, similar to that of Comia, as well as its simple pinnate fronds[5]

Peltaspermales
Temporal range:
Fossil of Leptidopteris
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Spermatophytes
Order: †Peltaspermales
Delevoryas 1979[1]
Families

References
  1. Peltaspermales et Fossilworks
  2. Taylor, Edith L.; Taylor, Thomas N.; Krings, Michael (2009). Paleobotany: The Biology and Evolution of Fossil Plants. Academic Press. pp. 639–48. ISBN 9780080557830.
  3. Elgorriaga, Andrés; Escapa, Ignacio H.; Cúneo, N. Rubén (July 2019). "Relictual Lepidopteris (Peltaspermales) from the Early Jurassic Cañadón Asfalto Formation, Patagonia, Argentina". International Journal of Plant Sciences. 180 (6): 578–596. doi:10.1086/703461. ISSN 1058-5893.
  4. "FLORA OF THE LOWER PERMIAN ABO FORMATION REDBEDS, WESTERN EQUATORIAL PANGEA, NEW MEXICO".
  5. "Auritifolia gen. nov., Probable Seed Plant Foliage with Comioid Affinities from the Early Permian of Texas, U.S.A."


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