Johnson, Introne, Mattes and Stipp 1980

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
UM-1642 8CO17 (McKeithen)
UM-1643 8CO17 (McKeithen)
UM-1644 8CO17 (McKeithen)
UM-1645 8CO17 (McKeithen)
UM-1646 8CO17 (McKeithen)
UM-1671 8DA11 (Granada)