Mazon Creek Fossils

The plants and animals found in concretions recovered from the Francis Creek Shale are some of the most important fossils that have been found in the state of Illinois. These fossils are known as the Mazon Creek fossils because they were originally found along Mazon Creek in northeastern Illinois. All of the fossils in my collection are from the strip mines around the town of Braidwood and in particular the pit that was known as Pit #11. Because of the unique conditions of fossilization, Mazon Creek fossils frequently have both hard and softer parts preserved. Many soft-bodied organisms that do not usually fossilize are preserved at this locality.
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    Mazon Creek Flora
    Macroneuropteris
    Neuropteris
    Alethopteris
    Alethopteris
    Pecopteris
    Pecopteris
    Macroneuropteris
    Neuropteris
    Alethopteris
    Alethopteris
    Pecopteris
    Pecopteris
    Macroneuropteris
    Lobatopteris
    Annularia
    Annularia
    Lepidostrobus
    Lepidostrobophyllum
    Macroneuropteris
    Lobatopteris
    Annularia
    Annularia
    Lepidostrobus
    Lepidostrobophyllum
    Neuropteris
    Spiropteris
    Lycopodites
    Lobatopteris
    Toby
    Juniorites
    Neuropteris
    Spiropteris
    Lycopodites
    Lobatopteris
    Tobyella
    Juniorites



    Mazon Creek Fauna
    Belotelson
    Acanthotelson
    Kallidecthes
    Mamayocaris
    Peachella
    Cyclus
    Belotelson
    Acanthotelson
    Kallidecthes
    Mamayocaris
    Peachella
    Cyclus
    Gilpichthys
    Rhabdoderma
    Acanthodes
    Esconichthys
    Mazomomya
    Aviculopecten
    Gilpichthys
    Rhabdoderma
    Acanthodes
    Esconichthys
    Mazomomya
    Aviculopecten
    Anthracomedusa
    Essexella
    Octomedusa
    Tullimonstrum
    Achistrum
    Gerarus
    Anthracomedusa
    Essexella
    Octomedusa
    Tullimonstrum
    Achistrum
    Gerarus
    Rhaphidiophorus
    Fossundecima
    Coprinoscolex
    Astreptoscolex
    Didontogaster
    Mazoglossus
    Rhaphidiophorus
    Fossundecima
    Coprinoscolex
    Astreptoscolex
    Didontogaster
    Mazoglossus
    Palaeoxyris
    Mazonova
    Escumasia
    Mazohydra
    Tullimonstrum
    Flabelligeridae
    Palaeoxyris
    Mazonova
    Escumasia
    Mazohydra
    Tullimonstrum
    Flabelligeridae
    Glaphurochiton
    Pieckonia
    Mazonopterum
    Sedgwickia
    Etacystis
    Archisymplectes
    Glaphurochiton
    Pieckonia
    Mazonopterum
    Sedgwickia
    Etacystis
    Archisymplectes
    Halicyne
    Ctenodus
    Concavicaris
    Essoidia
    Essexella
    Coprolite
    Halicyne
    Ctenodus
    Concavicaris
    Essoidia
    Essexella
    Coprolite





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