Sphenopteris
Sphenopteris is a genus of seed ferns containing the foliage of various extinct plants, ranging from the Devonian to Late Cretaceous. One species, "S. höninghausi", was transferred to the genus "Crossotheca" in 1911. Biology. The frond of "Sphenopteris" could be up to long. Distribution. 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.