Carboniferous Fern Fossil

Carboniferous Plant Fossil with Fern, Lake Michigan's Left Coast, lakemichigansleftcoast.com, Elizabeth G Fagan

Carboniferous Plant Fossil with Fern

Rockhounding on Lake Michigan’s east coast (aka the State of Michigan) is well documented. Here on Lake Michigan’s west coast we have abundant rocks as well.

On my beach in southeastern Wisconsin I pick up Ely Greenstone from early Earth (2.7 billion years ago) as well as limestone skulls of creatures from Permian Period (300 million years ago).

Carboniferous Plant Fossil with Fern, Lake Michigan's Left Coast, lakemichigansleftcoast.com, Elizabeth G Fagan
Carboniferous Plant Fossil with Fern, Lake Michigan’s Left Coast, lakemichigansleftcoast.com, Elizabeth G Fagan

Shown here is a piece of shale from the Carboniferous Period (350 million years ago). Several plant fragments have been compressed to create indentations. Fern fragments adorn each side. Running up the middle is a longish stem with a tuft of foliage on top.


About the Author

Elizabeth G Fagan and Rosie, Chicago
Elizabeth G Fagan and Rosie

Elizabeth G Fagan is an artist who resides on Lake Michigan’s shoreline in southeastern Wisconsin—a place she calls Lake Michigan’s Left Coast. She was a professional writer based in Chicago for much of a professional career that spanned more than 25 years.

The 2012 superstorm Hurricane Sandy is remembered for devastating New York City. Sandy was so massive she caused 25-foot waves on Lake Michigan in Chicago, some 900 miles to the west. Millions of stones washed up onto Montrose Dog Beach, the place where Fagan regularly walked her German Shepherd Rosie. One of Fagan’s early interests was revitalized as she collected rocks and fossils on that beach.

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