Disambiguation evidence for Carboniferous period via surface form

"Mississippian–Pennsylvanian (Carboniferous)"

Triples (1)

Triples where some other subject referred to this entity as "Mississippian–Pennsylvanian (Carboniferous)".

Yoredale Series → geologicPeriod →
"Mississippian–Pennsylvanian (Carboniferous)"
↳ resolves to Carboniferous period
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