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Sphenopteris

Sphenopteris
Temporal range: Late Devonian-Cretaceous
~388–70 Ma
Fossilized fern-like leaf strucutre
S. schumannii specimen on display at Musée d'Histoire Naturelle de Lille
Scientific classification
Kingdom: Plantae
Division: Pteridospermatophyta
Order: Lyginopteridales
Family: Lyginopteridaceae
Genus: Sphenopteris
Sternberg 1825
Species
  • S. alata †
  • S. elegans †
  • S. fragilis †
  • S. obtusiloba †
  • S. pinnae †
  • S. plicata †
  • S. pottsvillea †
  • S. sanjuliensis †
  • S. spiniformis †
  • S. suessi †
  • S. trifoliata †

Sphenopteris is a genus of seed ferns containing the foliage of various extinct plants, ranging from the Devonian to Late Cretaceous.

The frond of Sphenopteris could be up to 20 inches (51 cm) long.

In Brazil, fossil of form genus Sphenopteris was located in outcrop Morro Papalé in the city of Mariana Pimentel. They are in the geopark Paleorrota in Rio Bonito Formation and date from Sakmarian in Permian. Fossils of Sphenopteris have also been found in the Valle Alto Formation, Caldas, Colombia, among many other locations.



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