[Last updated 24 Jan 2024]

Phylum: Mollusca (Mollusks)

Pennsylvanian Period: (click for Cretaceous Period)
unknown oyster (same)

StrataHarpersville Fm
Period: Penn/Permian  (c. 300 mya)
Location: Coleman Co., TX. 15 Apr 2023
unknown oyster

StrataHarpersville Fm
Period: Penn/Permian  (c. 300 mya)
Location: Coleman Co., TX.  15 Apr 2023
Harpersville Formation USGS
















GPS
31°50'47.0"N
99°12'54.0"W