carboniferous sentence examples

• Carboniferous limestone runs from tenby to pembroke, the height above sea level being only about a hundred feet.
• Carboniferous sandstone, most frequently represented by york stone.
• Carboniferous rocks.
• Carboniferous series of the moorland districts of north yorkshire.
• Carboniferous era.
• Carboniferous formation, of which newcastle is the center.

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