These pictures of fossilized plants found in St. Clair, Pennsylvania. They grew in the Pennsylvanian or Late Carboniferous Period. Geologically they can be located in the Llewellyn Formation.
I think the plant in these pictures is called the
Neuropteris.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDLrjzpnxsPVytWT63n0bsFEoNlK46h-eFC7S6S17MI68ebtF8vBWLefIJV4nFc16_HvNwdd6U25DWe3tRXZ7XwlmaesuLTbZO_1svXLu_Wq72_FOm1PjoaRVe0p5_gvlG15NN7QYmlYUM/s400/neuropteris-ovata-2nd-one-another-view.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixkpjRm8PTPIo2Fmz_Frk8HoHeHbrdm1IBAO_N1Lb9ptsArs4AOhD8L28oOv2o0xnAU0n8YHKrDPyFTkC5PPtIOraUwgIQLQTdKWu3viKFsz6L4ABHeUgpNWXEoO4Nu5uMZIlgBBcBjx9V/s400/neuropteris-ovata-2nd-one.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiMbrLRy2eKSU_adNjyHZbaqv7It3N8maELydHri5K5mEFybHSUXnQkmD2CaxmDbu7kYCRRykwfahUcijAO96MO9zI6G-nKwbyXl6ThoPtZBs7Zsan5YpvZvxXPJk1U-r5NHopaUcDmMcdx/s400/neuropteris-ovata-another-view.jpg)