2.4" Polished Cut Slab Of Fossil Turritella Shells Eocene Age Wyoming Gastropod Shells

Location: Wyoming, United States

Weight: 0.8 Ounces

Dimensions: 2.4 Inches Long, 1.2 Inches Wide, 0.3 Inches Thick

The item pictured is the one you will receive. 

Fossil Turritella shells in Wyoming are primarily associated with the Eocene Green River Formation, particularly the Wilkins Peak Member, where layers known as the Turritella beds occur. These gastropods, belonging to the genus Turritella, are distinguished by their high-spired, conical shells composed of numerous tightly coiled whorls. The dense accumulation of these shells indicates periods when shallow marine or brackish-water conditions supported thriving populations of these filter-feeding snails.

The Green River Formation is renowned for its exceptional fossil preservation, including fish, insects, and plants, due to the anoxic conditions of the ancient lakes. Within this lacustrine system, the Turritella beds represent a distinct sedimentary facies, reflecting intervals of marine influence or increased salinity in an otherwise freshwater environment. By examining the morphology, abundance, and distribution of these shells, paleontologists can reconstruct Eocene ecosystems and gain insight into the environmental changes that shaped Wyoming millions of years ago.