Windom shale

Windom shale
Stratigraphic range: Givetian ~387–389 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Windom shale member of the Moscow formation, a trilobite pygidium (Eldredgeops rana) is exposed but not clearly visible
Type	Member
Unit of	Moscow formation
Sub-units	Upper Windom, Lower Windom
Underlies	North Evans limestone
Overlies	Kashong Shale
Area	Western New York
Thickness	15 meters
Lithology
Primary	Shale
Other	limestone
Location
Region	New York
Country	United States
Extent	Western New York
Type section
Named for	Windom, New York
Named by	Amadeus William Grabau

The Windom shale or Windom member is a member of the Moscow formation in New York. It preserves fossils going back to the Givetian stage of the middle Devonian. The Windom shale is widely known for its high quality trilobite fossils.^[1]