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) - 18:25, 14 May 2024
Polypodiophyta †Progymnospermophyta Superdivision Spermatophyta †Pteridospermatophyta Pinophyta Cycadophyta Ginkgophyta Gnetophyta Magnoliophyta (angiosperms)...
24 KB (2,003 words) - 15:09, 29 June 2024
Dayvaultia from the Late Jurassic of North America. "Seed ferns" (Pteridospermatophyta) is a collective term to refer to disparate lineages of fern like...
231 KB (24,878 words) - 02:07, 25 June 2024
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) - 00:45, 3 June 2024
The Sachrang Formation or "Posidonienschiefer" Formation (Whose Vulgar name is "Posidonia Shale") is a geological formation of southwestern Germany, northern...
366 KB (13,205 words) - 14:00, 6 July 2024
in the earliest, long-extinct gymnosperm group, the seed ferns (Pteridospermatophyta). The conifers or Pinophyta are one of four divisions of extant gymnosperms...
11 KB (1,213 words) - 17:46, 27 May 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
Pecopteris and the tree ferns Megaphyton and Caulopteris. Seed ferns or Pteridospermatophyta include Cyclopteris, Neuropteris, Alethopteris, and Sphenopteris...
22 KB (2,737 words) - 00:38, 2 July 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
Medullosales (category Pteridospermatophyta)
classification Kingdom: Plantae Clade: Tracheophytes Division: †Pteridospermatophyta Order: †Medullosales Corsin, 1960 Families Alethopteridaceae Codonospermaceae...
21 KB (2,220 words) - 20:20, 16 November 2023
Crossotheca (category Pteridospermatophyta)
Crossotheca is an extinct genus of seed ferns (Pteridospermatophyta) widespread in coal measures of Carboniferous, Permian and Triassic age, with possible...
5 KB (317 words) - 09:54, 15 April 2024
Polypodiophyta – ferns and horsetails Seed plants (spermatophytes) †Pteridospermatophyta – seed ferns Pinophyta – conifers Cycadophyta – cycads Ginkgophyta...
41 KB (3,855 words) - 23:37, 17 June 2024
Glossopteris (category Pteridospermatophyta)
is in the order Glossopteridales, which is placed in the division Pteridospermatophyta (often informally called "seed ferns"). In reality, many of the plant...
31 KB (3,375 words) - 06:33, 18 May 2024
Glossopteridales (category Pteridospermatophyta)
Glossopteridales is an extinct order of seed plants, known from the Permian of Gondwana. They arose at the beginning of the Permian , and the majority...
4 KB (274 words) - 03:37, 8 December 2023
Lyginopteridales (category Pteridospermatophyta)
classification Kingdom: Plantae Clade: Tracheophytes Division: †Pteridospermatophyta Class: †Lyginopteridopsida Order: †Lyginopteridales Families Moresnetiaceae...
16 KB (1,990 words) - 22:12, 7 December 2023
Moresnetiaceae (category Pteridospermatophyta)
Moresnetiaceae is a natural family of seed ferns in the Division Pteridospermatophyta that appears in the North American and European Devonian to Carboniferous...
3 KB (125 words) - 09:00, 15 February 2023
Caytoniales (category Pteridospermatophyta)
classification Kingdom: Plantae Clade: Tracheophytes Division: †Pteridospermatophyta Order: †Caytoniales Gothan, 1932 Family: †Caytoniaceae Kräusel, 1926...
10 KB (1,142 words) - 18:42, 21 June 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
Pteruchus (category Pteridospermatophyta)
Pteruchus is a form genus for pollen organs of the seed fern (Pteridospermatophyta family Umkomasiaceae. It was first described by Hamshaw Thomas from...
3 KB (301 words) - 17:25, 14 October 2022
Gigantopterid (category Pteridospermatophyta)
Gigantopterids (Gigantopteridales) is an extinct, possibly polyphyletic group of seed plants known from the Permian period. Gigantopterids were among the...
12 KB (1,241 words) - 19:52, 18 April 2024
Umkomasia macleanii (category Pteridospermatophyta)
Umkomasia macleanii is an ovulate structure of a seed fern (Pteridospermatophyta and the nominate genus of Family Umkomasiaceae. It was first described...
2 KB (151 words) - 17:25, 14 October 2022
Sagenopteris phillipsii (category Pteridospermatophyta)
classification Kingdom: Plantae Clade: Tracheophytes Division: †Pteridospermatophyta Order: †Caytoniales Family: †Caytoniaceae Genus: †Sagenopteris Species:...
1 KB (75 words) - 17:56, 14 October 2022
Sagenopteris trapialensis (category Pteridospermatophyta)
classification Kingdom: Plantae Clade: Tracheophytes Division: †Pteridospermatophyta Order: †Caytoniales Family: †Caytoniaceae Genus: †Sagenopteris Species:...
2 KB (142 words) - 18:27, 17 May 2024
Komlopteris (category Pteridospermatophyta)
Komlopteris is an extinct genus of "seed fern" with possible corystosperm affinities. Fossils have been found across both hemispheres, dating from the...
8 KB (787 words) - 09:43, 21 April 2024
Caytonia (category Pteridospermatophyta)
classification Kingdom: Plantae Clade: Tracheophytes Division: †Pteridospermatophyta Order: †Caytoniales Family: †Caytoniaceae Genus: †Caytonia H.H.Thomas...
2 KB (139 words) - 07:05, 25 April 2024
Neuropteris (category Pteridospermatophyta)
classification Kingdom: Plantae Clade: Tracheophytes Division: †Pteridospermatophyta Order: †Medullosales Family: †Neurodontopteridaceae Genus: †Neuropteris...
2 KB (46 words) - 06:02, 18 May 2024
Alethopteris (category Pteridospermatophyta)
classification Kingdom: Plantae Clade: Tracheophytes Division: †Pteridospermatophyta Order: †Medullosales Family: †Alethopteridaceae Genus: †Alethopteris...
2 KB (46 words) - 05:36, 18 May 2024
Corystospermaceae (category Pteridospermatophyta)
Corystosperms are a group of extinct seed plants (often referred to as "seed ferns") belonging to the family Corystospermaceae (also called Umkomasiaceae)...
17 KB (1,678 words) - 09:47, 21 April 2024
recognized include: Lycopodiophyta, Arthrophyta, Pteridophyta, and Pteridospermatophyta. Fossils have been recovered from every rock type in the Llewellyn...
6 KB (585 words) - 19:35, 19 March 2024
Caytonanthus (category Pteridospermatophyta)
classification Kingdom: Plantae Clade: Tracheophytes Division: †Pteridospermatophyta Order: †Caytoniales Genus: †Caytonanthus Harris 1937 Species Caytonanthus...
2 KB (110 words) - 14:36, 2 November 2022