Bruce Skubon Jr.'s Web Site
Sylvania, Ohio Quarry Fossils
Fossil collecting in the Silica Shale of Lucas County, Ohio
May 10, 2006
Page 2
A lot of the fossils found in this area are completely replaced by
pyrite and marcasite after pyrite.  Some fossils can be found
with pyrite crystals covering them.  It is mostly the Brachiopods
that are replaced by and covered with the pyrite.  Small crystals
of pyrite and marcasite can be found by themselves also like in
the picture below.
Crinoids, Aulopora, and
Bryozoan
Bryozoan?? replaced
with marcasite
Marcasite
Brachiopods
(Mucrospirifer mucronatus)
replaced with marcasite
Brachiopods
(Paraspirifer bownockeri)
replaced with marcasite
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