Tuscahoma Formation

Tuscahoma Formation
Stratigraphic range: Thanetian to earliest Ypresian,
TypeFormation
Unit ofWilcox Group
Sub-unitsBells Landing Member, Greggs Landing Member
UnderliesBashi Formation
OverliesNanafalia Formation
Lithology
PrimarySandstone
Location
RegionMississippi, Alabama
CountryUnited States

The Tuscahoma Formation or Tuscahoma Sand is a geologic formation in Mississippi and Alabama, United States. It preserves fossils dating back to the early Paleogene period, from the Late Paleocene and Early Eocene. It was primarily deposited in a marine habitat, but one Wasatchian-aged locality near Meridian, Mississippi was deposited in an estuarine habitat that preserves a significant terrestrial vertebrate fauna, known as the "Red Hot local fauna". It preserves one of the most diverse early Eocene mammalian faunas from eastern North America, roughly contemporaneous with the Willwood Formation of Wyoming.