Cephalopods are predatory marine molluscs that include squid, octopses, and nautiloids.
Ammonite; 14.5 cm wide. Collected by Jake Skabelund of Logan, Utah from the lower Windom Shale.Spyroceras sp.; 15 cm wide. Collected by Jess Martin from the lower Windom Shale.Orthocone cephalopod; 9.8 cm wide. Collected by Megan Ferguson from the lower Windom Shale.Pyritized cephalopod; 4 cm wide. Collected by Brandon Bialy from the lower Wanakah Shale.Pyritized cephalopod; 10 cm wide. Collected by Brandon Bialy from the upper Wanakah Shale in the Rush Creek tributary.Pyritized cephalopod; 4.7 cm wide. Collected by Rich Spencer from the upper Wanakah Shale in the Rush Creek tributary.
Spyroceras sp.; 4.4 cm wide. Collected by Dr. Robert Corretore from the Windom Shale.Spyroceras sp.; 6.8 cm wide. Collected by Charles Abbas from the Windom Shale.Unknown cephalopod; 13.6 cm wide. Collected by Don Decker from the lower Windom Shale.Unknown cephalopod; 24 cm wide. Collected by Jim Redmon from the lower Windom Shale.
Pyritized cephalopod; 2 cm wide. Collected by Jonathan Hoag from the upper Windom Shale.Pyritized ammonite; 2 cm wide. Collected by Jonathan Hoag from the upper Windom Shale.
