-
Crossotheca in 1911. 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...
- ferns"
include Pecopteris, Cyclopteris, Neuropteris, Alethopteris, and
Sphenopteris;
Megaphyton and
Caulopteris were tree ferns. The
Equisetales included...
-
comparable form †
Sphenopteris elegans †
Sphenopteris flexicaulis †
Sphenopteris foliosa †
Sphenopteris formosa †
Sphenopteris furcata †
Sphenopteris goepperti –...
-
enabled Oliver and
Scott to
attribute these seeds to
fernlike foliage of
Sphenopteris hoeningshauseni in the same coal balls. This was the
first recognition...
- Pterido****tophyta
include Cyclopteris, Neuropteris, Alethopteris, and
Sphenopteris. The
Equisetales included the
common giant form Calamites, with a trunk...
-
Potonie (1954) †C. höninghausi
Johnson &
Kidston (1911) [originally
Sphenopteris] †C.
hughesiana Kidston (1906) †C.
kentuekiensis Stubbefield, Taylor...
- †Lyginopteridaceae
Genera Lagenostoma ovulate structures Lyginopteris permineralized wood
Sphenopteris leaves Telangium pollen organs Tetrastichia?
ovulate structures...
- from dry
upland forests to
moist riverside galleries. "Seed ferns" (
Sphenopteris, Autunia, Odontopteris, etc.) and
early conifers (Walchia, etc.) occupied...
-
trancata A
member of Ginkgoales,
dominant Gingkgoites trancatus Podozamites Podozamites sp.
Conifer foliage Sphenopteris Sphenopteris sp. Seed
plant foliage...
- Seed
ferns Genus Species Notes Images Sphenopteris S. cf. S.
germanica A seed fern. "Callipteris" C. conferta, C. flabellifora, C.
scheibei A seed fern...
