|
Locality |
Layer |
|
USA, Maryland, Corriganville |
Jennings Fm. |
|
USA, Maryland, Polish Mountain, Williams road |
Parkhead M., Jennings Fm. |
|
USA, Maryland, White Sulphur Branch, NE of Pratt |
Parkhead M., Jennings Fm. |
|
USA, West Virginia, Gilpintown W of Burlington |
Naples Fm. |