Disambiguation evidence for Carboniferous period via surface form

"Lower Carboniferous (Mississippian)"

Triples (1)

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

Carboniferous period → alsoKnownAs →
"Lower Carboniferous (Mississippian)"
↳ resolves to Carboniferous period
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