†Polaricyclus bordenensis Work and Mason 2003 (ammonite)
Click image to enlarge. Click to access iDigBio record.
Cephalopoda - Goniatitida - Pericyclidae
Full reference: D. M. Work and C. E. Mason. 2003. Mississippian (middle Osagean) ammonoids from the Nada Member of the Borden Formation, Kentucky. Journal of Paleontology 77(3):593-596
Belongs to Polaricyclus according to D. M. Work and C. E. Mason 2003
Sister taxa: Polaricyclus ballardensis, Polaricyclus conkini, Polaricyclus minimus
Type specimen: SUI 95344. Its type locality is Hilltop Church Roadcut, which is in a Chadian marine shale/siltstone in the Borden Formation of Kentucky.
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 16.0
Distribution: found only at Hilltop Church Roadcut
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.