Jump to content

Tetradium

A large Endoceras proteiforme. From Decorah shale.  Only a little section of the shell remains on the lower half. The segmented part are septum and the smooth part are siphuncle. 

From the album:

Minnesota Ordovician Decorah Cephalopods

· 17 images
  • 17 images

Photo Information

  • Taken with EASTMAN KODAK COMPANY KODAK DX7590 ZOOM DIGITAL CAMERA
  • Focal Length 6.3 mm
  • Exposure Time 1/8
  • f Aperture f/2.8
  • ISO Speed 140
×
×
  • Create New...