Tree fern, Scaly Lepidodendron, Psilophyton, Blue Encephalartos, Dioon:
Adapted from copyright-expired botanical drawings

Broadleaved Bjuvia:
Adapted from public domain image, rights-free

Prototaxites, Horsetail, Woody Lepidodendron, Encephalartos horridus, Cycas:
Original artwork, by author

Cooksonia:
Adapted from Ville Koistinen, creative commons license to adapt (https://fi.wikipedia.org/wiki/Tiedosto:Cooksonia.png)
You may copy, distribute and / or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation ; does not apply to unchanged items, neither front cover texts nor book cover texts. A copy of the license is available under the GNU Free Documentation License.
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you can:
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remix - produce modified works
Under the following conditions:
Designation - The author of a work must be identified as directed by the author or the licensor of the work (but not in such a way that the notification indicates that the licensor supports the licensee or the use of the work)
share as well - If you modify or base this work, you may share the resulting work only with this or a similar license.

Wattieza
Adapted from alconaumanni, creative commons license to adapt (https://commons.wikimedia.org/wiki/File:Wattieza_reconstruccion.jpg)
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.	
You are free:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

Williamsonia
Adapted from Matteo De Stefano/MUSE, creative commons license to adapt (https://commons.wikimedia.org/wiki/File:Williamsonia_life_restoration_-_MUSE.jpg)
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.	
You are free:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

Slender Bjuvia:
Adapted from Matteo De Stefano/MUSE, creative commons license to adapt (https://commons.wikimedia.org/wiki/File:Bjuvia_sp._-_Life_restoration_-_MUSE.jpg)
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.	
You are free:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
