User:Abyssal/Portal:Carboniferous/DYK/2
Appearance
![Fossil of Neuropteris ovata.](http://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/FossilFernLeavesPennsylvanianOhio.jpg/100px-FossilFernLeavesPennsylvanianOhio.jpg)
- ... that the largest known ovules produced by any non-flowering seed-plant came from the Medullosales (fossilized leaves pictured), an order of extinct seed ferns?
- ... that Adolf Carl Noé challenged disbelief in the possibility of North American coal balls (example pictured) by presenting a wheelbarrow full of them?
- ... that the extinct griffenfly genus Bohemiatupus inhabited peat-mires?
- ... that Okmulgee State Park (pictured) in Oklahoma is one of only a few places in the world where the fossil coral Gymnophyllum wardi is found?
- ... that the type specimen of the extinct whip scorpion Graeophonus carbonarius was originally identified as a species of dragonfly?