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"Seed Ferns"

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(8 total)

Neuropteris
Neuropteris
© 2003 Spencer Lucas, New Mexico Museum of Natural History

Callixylon
Callixylon
© 2001 Richard Schrantz

Lobatopteris lamuriana (formerly called Pecopteris lamuriana)
Lobatopteris lamuriana (formerly called Pecopteris lamuriana)
© 2005 The Virtual Fossil Museum

What are "Seed Ferns"? The “seed ferns,” (pteridosperms), were plants that produced seeds but had foliage like ferns. They are thought to have grown as trees, shrubs, or vines, and although they all looked like ferns, their relationships to other plants are still being studied. Members of this group first appeared in the Early Carboniferous, and all were extinct by the Cretaceous.

First known fossil occurrence: Carboniferous.

Last known fossil occurrence: Cretaceous.

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Quaternary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Precambrian
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