Carboniferous–Permian boundary

Target entity: Carboniferous–Permian boundary
Context triple: [GSSP at Aidaralash Creek, Kazakhstan (base of Asselian), systemBoundary, Carboniferous–Permian boundary]

• A. Frasnian–Famennian boundary
  The Frasnian–Famennian boundary marks a major Late Devonian mass extinction interval characterized by severe global environmental upheavals and widespread marine biodiversity loss.
• B. Emsian–Eifelian boundary
  The Emsian–Eifelian boundary marks the internationally recognized transition between the Early and Middle Devonian periods in the geologic timescale.
• C. Givetian–Frasnian boundary
  The Givetian–Frasnian boundary marks the internationally recognized stratigraphic transition between the Middle and Late Devonian periods, defined by specific fossil and sedimentary changes in the geologic record.
• D. Permian Period
  The Permian Period was the final period of the Paleozoic Era, marked by the diversification of reptiles and the largest mass extinction in Earth's history at its close.
• E. Carboniferous period
  The Carboniferous period was a Paleozoic era interval, roughly 359 to 299 million years ago, characterized by extensive swampy forests that formed vast coal deposits and by the diversification of early amphibians and insects.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Carboniferous–Permian boundary
Target entity description: The Carboniferous–Permian boundary marks the internationally recognized transition between the late Paleozoic Carboniferous and Permian periods, defined stratigraphically by a Global Boundary Stratotype Section and Point (GSSP).

• A. Frasnian–Famennian boundary
  The Frasnian–Famennian boundary marks a major Late Devonian mass extinction interval characterized by severe global environmental upheavals and widespread marine biodiversity loss.
• B. Emsian–Eifelian boundary
  The Emsian–Eifelian boundary marks the internationally recognized transition between the Early and Middle Devonian periods in the geologic timescale.
• C. Givetian–Frasnian boundary
  The Givetian–Frasnian boundary marks the internationally recognized stratigraphic transition between the Middle and Late Devonian periods, defined by specific fossil and sedimentary changes in the geologic record.
• D. Permian Period
  The Permian Period was the final period of the Paleozoic Era, marked by the diversification of reptiles and the largest mass extinction in Earth's history at its close.
• E. Carboniferous period
  The Carboniferous period was a Paleozoic era interval, roughly 359 to 299 million years ago, characterized by extensive swampy forests that formed vast coal deposits and by the diversification of early amphibians and insects.
• F. None of above. chosen