Tar Heel Formation
Geology
Group: Black Creek
Members: unnamed (6)
Lithologies: not reported (4), siltstone (1), sandstone (2)
Paleoenvironments: marine indet. (1), terrestrial indet. (2), estuary/bay (1), deltaic indet. (1), transition zone/lower shoreface (1)
Age range: base of the Early/Lower Campanian to the top of the Middle Campanian or 83.50000 to 70.60000 Ma