Dawsonoceras cephalopod found in the Waldron Shale of Clark County, Indiana. Creature existed in the Middle Silurian Period. It has sinusoidal growth lines which were magnified under the microscope 23 times.
Monday, February 25, 2013
Dawsonoceras Up Close
Dawsonoceras cephalopod found in the Waldron Shale of Clark County, Indiana. Creature existed in the Middle Silurian Period. It has sinusoidal growth lines which were magnified under the microscope 23 times.