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1.4" Fossil Horsetail (Annularia) In Ironstone - Illinois
This is a 1.4" fossil horsetail (Annularia) stalk from the Carbondale Formation near Coal City, Illinois. This specimen is a section of stalk with three, leaf whorls.
Annularia is an extinct genus of plant, closely related to modern horsetails, from the Late Carboniferous, Pennsylvanian aged forests.
Annularia is an extinct genus of plant, closely related to modern horsetails, from the Late Carboniferous, Pennsylvanian aged forests.
SPECIES
Annularia sphenophyllites
LOCATION
Coal City, Illinois
FORMATION
Carbondale Formation
SIZE
1.4" stalk, 2.1 x 1.9" nodule
CATEGORY
SUB CATEGORY
ITEM
#120996
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