Matthew Ignoffo:
Mazon Creek Shrimp
Matthew Ignoffo:
Probably Essexella asherae
Matthew Ignoffo:
Preserved fern leaf fragment. Pecopteris sp.
Matthew Ignoffo:
Unknown fossil
Matthew Ignoffo:
Intact ironstone concretions
Matthew Ignoffo:
Ironstone concretion embedded in shale. this nodule contains a fossil undoubtedly. Many are unrecognizable, though.
Matthew Ignoffo:
Macroneuropteris Scheuchzeri
Matthew Ignoffo:
Mazon Creek Fern Fossil
Matthew Ignoffo:
Mazon Creek Fern Fossil
Matthew Ignoffo:
Mazon Creek Fern Pinnule
Matthew Ignoffo:
Mazon Creek Crustacean Fossil
Matthew Ignoffo:
Fossilized stem
Matthew Ignoffo:
Macroneuropteris Scheuchzeri
Matthew Ignoffo:
Mazon Creek Fern Fossil
Matthew Ignoffo:
Mazon Creek Fern Fossil
Matthew Ignoffo:
Mazon Creek Plant Fossil
Matthew Ignoffo:
Creek exposing Silurian Limestone.
Matthew Ignoffo:
20140816_152627mod
Matthew Ignoffo:
Silurian Cephalod Fossil
Matthew Ignoffo:
Silurian Trilobite
Matthew Ignoffo:
Silurian Trilobite
Matthew Ignoffo:
Ordovician Fossil
Matthew Ignoffo:
Ordovician Fossil.
Matthew Ignoffo:
Ordovician Gastropod Fossil
Matthew Ignoffo:
Ordovician Coral Fragments
Matthew Ignoffo:
Ordovician Brachiopod
Matthew Ignoffo:
Silurian Trilobite
Matthew Ignoffo:
Silurian Trilobite
Matthew Ignoffo:
Silurian Trilobite
Matthew Ignoffo:
Tentaculites fossils (among others) from Chicagoland, Illinois
