Definition of Spiropteris. Meaning of Spiropteris. Synonyms of Spiropteris

- fiddleheads) of the fern fronds have been found. They sometimes go by the name Spiropteris. The study of croziers ****ociated with psaronius wood have been used...
- Formation Cone scales A member of the Pinales of the family Pinaceae. Spiropteris Indeterminate Mount Carson Lower and Middle Hanson Formation Fragment...
- the Pteridophyta Spiropteris Spiropteris sp. Bagagraven clay pit Rare Single impression Incertae ordinis in the Pteridophyta. Spiropteris is the name given...
- rowleyi †Spirodentalium †Spirodentalium walcotti – tentative report Spiropteris Spirorbis †Spirorbis kinderhookensis †Spirorbis kinderhookiensis †Spyroceras...
- veronensis – or unidentified comparable form †Spirifer washingtonensis Spiropteris Spirorbis †Spiroscala †Sporangites †Sporangites huronensis †Springericrinus...
- pennatus †Spiromphalus †Spiromphalus pervius – type locality for species Spiropteris Spirorbis †Spirorbis arkonensis †Spirorbis planum †Spiroscala †Spiroscala...