.9" Fossil Arrow Worm (Paucijaculum) - Illinois

This is a .9", fossil arrow worm (Paucojaculum) preserved inside an ironstone nodule from the Carbondale Formation near Essex, Illinois.

Paucijaculum is an extinct genus of the phylum Chaetognatha, the Bristle Jaw worms. They planktonic marine predators.


DETAILS
SPECIES
Paucijaculum samamithion
LOCATION
Essex, Illinois
FORMATION
Carbondale Formation
SIZE
.9" worm, 2.2 x 1.7" nodule
CATEGORY
ITEM
#120869
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