 | Pteridospermatophyta, also called "pteridosperms" or "seed ferns" are a polyphyletic grouping of extinct seed-producing plants. The earliest fossil evidence... 18 KB (1,595 words) - 07:54, 11 February 2024 |
 | Polypodiophyta †Progymnospermophyta Superdivision Spermatophyta †Pteridospermatophyta Pinophyta Cycadophyta Ginkgophyta Gnetophyta Magnoliophyta (angiosperms)... 24 KB (1,972 words) - 22:58, 27 March 2024 |
 | Alethopteris (category Pteridospermatophyta) Alethopteris is a prehistoric plant genus of fossil Pteridospermatophyta (seed ferns) that developed in the Carboniferous period (around 360 to 300 million... 2 KB (80 words) - 02:02, 24 February 2023 |
 | Dayvaultia from the Late Jurassic of North America. "Seed ferns" (Pteridospermatophyta) is a collective term to refer to disparate lineages of fern like... 228 KB (24,670 words) - 18:46, 18 April 2024 |
 | The Sachrang Formation or "Posidonienschiefer" Formation (Whose Vulgar name is "Posidonia Shale") is a geological formation of southwestern Germany, northern... 364 KB (13,151 words) - 20:23, 15 April 2024 |
 | Lepidopteris callipteroides is a form species for leaves of Late Permian Pteridospermatophyta, or seed ferns, which lived from around 252 million years ago in... 3 KB (213 words) - 00:24, 20 April 2024 |
 | Lyginopteris (category Pteridospermatophyta) classification Kingdom: Plantae Clade: Tracheophytes Division: †Pteridospermatophyta Class: †Lyginopteridopsida Order: †Lyginopteridales Family: †Lyginopteridaceae... 2 KB (100 words) - 17:38, 14 October 2022 |
Calamopityaceae (category Pteridospermatophyta) division of extinct seed-bearing plants (spermatophytes) known as Pteridospermatophyta. It is the only family in the monotypic order Calamopityales. This... 14 KB (1,403 words) - 05:04, 10 January 2024 |
 | Polypodiophyta – ferns and horsetails Seed plants (spermatophytes) †Pteridospermatophyta – seed ferns Pinophyta – conifers Cycadophyta – cycads Ginkgophyta... 41 KB (3,855 words) - 06:10, 19 April 2024 |
Pteridophyta (ferns & horsetails) Rhyniophyta (early plants) Gymnosperms Pteridospermatophyta (seed "ferns") Cycadophyta Ginkgophyta Gnetophyta Pinophyta (conifers)... 5 KB (369 words) - 07:06, 1 March 2024 |