GSM invites members to send in photos and accompanying descriptions on any aspect of Maine geology. New photos will be posted each month, and former photos will be available in the photo archive. Please include photo credits. Send to paleo@gwi.net.

A cross-sectional view through a complex network of vertical burrows from the Tarratine Formation. Age: Devonian (Pragian).
Photo credit: L. Churchill-Dickson.

The trilobite Acaste zerinae from the Leighton Formation of eastern Maine. Age: Silurian (Pridoli). Scale: bar = 6 mm.
Photo credit: J. Poisson.