Gigantopterids is a group of Peltasperms (Seed Plants) from the Permian of North America and China. Specimens from Oklahoma have not been studied systematically and assignment of a proper genus name awaits further investigation.
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00008694.jpg)
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00008694-1024x978.jpg)
GigantopteridOPC 3566-8694; Peltasperm (Seed Plant); Early Permian; Otoe Member, Wellington Formation; Noble County, Oklahoma; CC BY-NC-ND 4.0
Gigantopterid
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00008924.jpg)
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00008924-468x1024.jpg)
GigantopteridOPC 3246-8924; Peltasperm (Seed Plant); Early Permian; Garber Sandstone; Oklahoma County, Oklahoma; CC BY-NC-ND 4.0
Gigantopterid
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00010263.jpg)
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00010263-759x1024.jpg)
GigantopteridOPC 2001-10263; Peltasperm (Seed Plant); Early Permian; Midco Member, Wellington Formation; Noble County, Oklahoma; CC BY-NC-ND 4.0
Gigantopterid
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00009614.jpg)
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00009614.jpg)
GigantopteridOPC 3051-9614; Peltasperm (Seed Plant); Early Permian; Garber Sandstone; Cleveland County, Oklahoma; CC BY-NC-ND 4.0
Gigantopterid
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00012049.jpg)
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00012049-935x1024.jpg)
GigantopteridOPC 2001-12049; Peltasperm (Seed Plant); Early Permian; Midco Member, Wellington Formation; Noble County, Oklahoma; CC BY-NC-ND 4.0
Gigantopterid
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00014068.jpg)
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00014068-725x1024.jpg)
GigantopteridOPC 3051-14068; Peltasperm (Seed Plant); Early Permian; Garber Sandstone; Cleveland County, Oklahoma; CC BY-NC-ND 4.0
Gigantopterid
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00014069.jpg)
![Gigantopterid fossil](https://samnoblemuseum.ou.edu/wp-content/uploads/2017/02/Gigantopterid-00014069-725x1024.jpg)
GigantopteridGigantopterid
OPC 3051-14069; Peltasperm (Seed Plant); Early Permian; Garber Sandstone; Cleveland County, Oklahoma; CC BY-NC-ND 4.0