权威例句
Evolution of the Psilophyte PaleofloraA Middle or Lower Devonian Psilophyte Flora from Central Arizona and its Paleogeographic SignificanceA psilophyte in South AfricaDer Generationswechsel der Psilophyten1The Morphology and Ultrastructure of Spores of the Early Devonian Trimerophyte Psilophyton (Dawson) Hueber & BanksFUNGAL REMAINS IN THE DEVONIAN TRIMEROPHYTE PSILOPHYTON DAWSONIIEvidence for Xylem Constrictions in the Primary Vasculature of Psilophyton dawsonii, an Emsian TrimerophytePitting in Psilophyton dawsonii, an Early Devonian TrimerophyteA Morphometric Analysis of an Early Euphyllophyte, Psilophyton dapsileA reconsideration of psilophyton (?) hedei halle, Silurian of Gotland (Sweden)