Fine Mazon Creek Pecopteris Fern Fossil

Pecopteris sp

Division Pteridophyta

Geological Time: Pennsylvanian (~300 m.y.a.)

Size: Plant fossil is 118 mm long by 18 mm across (maximum); Nodule: 130 mm by 62 mm nodule half

Fossil Site: Mazon Creek, Francis Creek shale, Morris, Illinois

Code: MZF32

Price: $25.00

Mazon Creek Pecopteris Fern FossilDescription: The Mazon Creek deposits of the region near Braidwood, Illinois rival the other famous Lagerstatte of the Burgess Shale, Solnhofen, and Liaoning for the variety of detailed life preserved. Many exquisitely-preserved specimens are found in the ironstone nodules that make up the deposits. The majority of collecting areas are the spoil heaps of abandoned coal mines. This particular nodule, however, comes from Mazon Creek itself, and was collected directly from the stream bed many years ago. Most genera and species of plants were originally described from this region, so this specimen can be considered a topotype. The Pteridophyte (tree fern) Psaronius became a dominant form supplanting the lycopods. The leaf fronds and pinnules of Psaronius were given the form genus designation of Pecopteris, a highly variable form whose classification is still under review. This is a fine large example which fills is enclosing half nodule.

Fossil Sales

Fossil Mall Navigation:
l Home l Fossils for Sale Map l Museum and Rare Fossils l How to Buy Fossils l

Navigate by Fossil Category:
l Trilobites
l Ammonites l Fish Fossils l Invertebrate Fossils l
l Crinoids and Echinoderms l Insect Fossils l Dinosaur and Reptile Fossils l
l Cambrian Explosion Fossils l Plant Fossils l Stromatolites l
l Vertebrate Fossils l Fossil Amber l Trace & Ichnofossils l

l Fossils and Paleotological Science Information l