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The late Carboniferous forests around the northern hemisphere were far more alike than the modern ones.
We do know that most coal fields began life as swamps about 300 million years ago in the Carboniferous period.
There were freshwater sharks in the rivers and lakes that dominated the area during the Carboniferous.
This creature lived in the Carboniferous, before dinosaurs existed.
Slate was originally laid down as layers of fine silt during the Carboniferous.
Carboniferous pteridosperms that comprise a unique and hitherto unrecognized type, characterized by the presence of alkylated phenols.
Carboniferous and younger fault lines were reactivated during compression.
Carboniferous times and can be separated into several stages as follows.
The areas most affected are associated with carboniferous limestones.
There is carboniferous limestone 30 or 40 feet thick with no covering on the top.
When one goes back to the coal face, one returns to the carboniferous era and the dark ages.
Then there are the carboniferous plays in the southern basin.
It is possible that some groundwater could be made available from the carboniferous stratum, but the quantities are expected to be small and the water quality poor.
They think that the bacteria and fungi which converted the undergrowth of the carboniferous jungles into coal can be stimulated to carry this process further and so liquefy the coal.
Carboniferous limestone was chosen for the blanket because of its inert chemical properties and it acts both as a drainage layer and as a working platform for the embankment construction.
The site consists of a 19.5 ha strip of land surrounding a line of carboniferous limestone cliffs.
It lies on carboniferous limestone with rock showing through the thin topsoils.
The rock quarried was carboniferous mountain limestone which was used for construction and railway ballast.
He was a leading paleobiologist and carried out some work on carboniferous palaeobotany.
They are mostly built from the same carboniferous limestone used at the castle.
