Thursday, April 15, 2021

041521


 


Platy fossils, including clam-like mollusks (M) and fenestrate (window-shaped) bryozoans (B), all with dark microbial coatings, stacked up and mixed with smaller debris by oceam currents, next to a small microbial reef (not visible here. Image 2.5 millimeters wide, Mississippian, North Alabama.

No comments: