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

Eusphenopteris sauveuri		ZŠ605
Eusphenopteris		ZŠ816
Eusphenopteris		ZŠ834
Eusphenopteris		ZŠ844
Eusphenopteris		ZŠ835
Givesia media		ZŠ499
Givesia media		ZŠ500
Gracillopteris bergeronii	Šimůnek et al. (2017), Pl. 3, fig. 3	ZŠ637
Laveineopteris bohemica		ZŠ820
Laveineopteris bohemica		ZŠ821
Laveineopteris bohemica		ZŠ843
Laveineopteris bohemica		ZŠ430
Laveineopteris bohemica		ZŠ842
Laveineopteris bohemica		ZŠ429
Laveineopteris loshii		ZŠ427
Laveineopteris loshii		ZŠ426
Laveineopteris loshii		ZŠ428
Laveineopteris loskii		ZŠ438
Laveineopteris lubnensis Havlena		ZŠ432
Laveineopteris lubnensis Havlena		ZŠ434

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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]