1.7" Fossil Hydroid (Drevotella) Pos/Neg - Illinois

 
This is a 1.7", fossil Hydroid (Drevotella), preserved inside an ironstone nodule from the Carbondale Formation near Essex, Illinois. It is the positive (convex) and negative (concave) sides of the nodule.

Hydroids are a life stage for most of the class Hydrozoa, small predators related to jellyfish.
DETAILS
SPECIES
Drevotella proteana
LOCATION
Essex, Illinois
FORMATION
Carbondale Formation
SIZE
1.7" hydroid, 2.2 x 2.2" nodule
ITEM
#120718
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