Problems of Pennsylvanian-Permian Boundary in Southern Nevada (Q67220817)
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Current Data About Problems of Pennsylvanian-Permian Boundary in Southern Nevada
(P31) (Q13442814)

(P50) (Q1070740)
(P1545) 1
(P1932) Chester R. Longwell

(Q1039929)
(P1545) 2
(P1932) Carl Owen Dunbar

(P304) 1198-1207

(P433) 9

(P478) 20

(P577) Wednesday, January 1, 1936

(P1433) (Q4649909)
(P813) Tuesday, September 10, 2019

(P1476) "Problems of Pennsylvanian-Permian Boundary in Southern Nevada" (language: en)