Pteridospermopsida

The term Pteridospermatophyta (or "seed ferns") refers to several distinct groups of extinct seed-bearing plants (spermatophytes). The oldest fossil evidence of plants of this type is of late Devonian age, and they flourished particularly during the Carboniferous and Permian periods. Pteridosperms declined during the Mesozoic Era and had mostly disappeared by the end of the Cretaceous Period, though some fossil pteridosperm-like plants seem to have survived into Eocene times in Tasmania.

Source: http://en.wikipedia.org/wiki/Pteridosperms

Alethopteris bohemica	Šimůnek (1989), Pl. 1, fig. 1	YA1273
Alethopteris bohemica		YA1280
Alethopteris bohemica		YA1276
Alethopteris bohemica		YA1274
Alethopteris idae	Šimůnek (1996a), Pl. VII, fig. 1-4	ZŠ7
Alethopteris lonchilifolia	Šimůnek (1996a), Pl. XIV, fig. 4	ZŠ14
Alethopteris lonchilifolia	Šimůnek (1996a), Pl. XIV, fig. 2	ZŠ13
Alethopteris lonchilifolia	Šimůnek (1996a), Pl. XIV, fig. 5	ZŠ15
Alethopteris lonchitica		p4652
Alethopteris zeilleri		YA1281
Alethopteris zeilleri		YA1282
Arnhardtia mouretii	Šimůnek et al. (2017), Pl. 2, fig. 9	ZŠ637
Arnhardtia scheibei	Šimůnek at al. (2017), Pl. 2, fig.8	ZŠ635
Arnhardtia scheibei		ZŠ722
Arnhardtia scheibei		ZŠ703
Arnhardtia scheibei		ZŠ636
Aulacotheca idae Šimůnek&Drábková		ZŠ502
Aulacotheca idae Šimůnek&Drábková		ZŠ506
Aulacotheca idae Šimůnek&Drábková		ZŠ501
Aulacotheca Halle, 1933		ZŠ503

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Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]