Fossil Shrimp, Carboniferous, Pit 11, Mazon Creek, Braidwood, Illinois 1-13/16"

Description

Fossil Shrimp  (half nodule)
Carboniferous
Pit 11, Mazon Creek
Braidwood, Illinois
Here’s a really nice quality fossil Shrimp from Pit 11, Mazon Creek.
This specimen was collected in the late 70’s.
The Peabody Energy company operated several large strip mines in Grundy County that are now abandoned.
They were named Pit 1 through Pit 11. The northern pits 1-8 are known for the Braidwood Biota with mostly terrestrial fauna and flora. Pit 11, which was located southwest of the town of Braidwood, Illinois, is known for its Essex Biota with a greater abundance of marine species.[7] Pit 11 is now Braidwood State Fish and Wildlife Area, an Illinois state park. Fossil collecting is allowed at the park with a permit.[8]The Mazon Creek fossil beds are a conservation lagerstätte found near Morris, in Grundy County, Illinois. The fossils are preserved in ironstone concretions, formed approximately 309 million years ago in the mid-Pennsylvanian epoch of the Carboniferous period. These concretions frequently preserve both hard and soft tissues of animal and plant materials, as well as many soft-bodied organisms that do not normally fossilize. The quality, quantity and diversity of fossils in the area, known since the mid-nineteenth century, make the Mazon Creek lagerstätte important to paleontologists, in attempting to reconstruct the paleoecology of the sites.[4] The locality was declared a National Historic Landmark in 1997.
See my pics.
This Shrimp fossil half nodule measures approximately 1-13/16″.
Total weight : about 31.2 grams.
Photos taken indoors
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I do combine shipping and provide partial shipping refunds when feasible. i.e. when items purchased the same day fit/ship easily and safely together.
I will refund all excess shipping paid (usually within 1-2 days) and combine items in one First Class package (less than 13 oz) Medium size items can often be combined into one padded flat rate Priority padded envelope.
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Thanks for looking at my fossils!