Carboniferous
carboniferous
Bashkirian
Kasimovian
Moscovian
Serpukhovian
Gzhelian
Visean
Westphalian
carbonigenous
order Bennettitales
Bennettitales
Eocene
coal
Miocene
Pleistocenic
fossiliferously
Bennettitaceae
family Bennettitaceae
Lutetian
order Lepidodendrales
Lepidodendrales
Bartonian
Priabonian
Thanetian
Selandian
Danian
coal plant
Ypresian
Carboniferous period
Mississippian
Pleistocene
aneolithic
Upper Carboniferous
Upper Carboniferous period
Pennsylvanian period
Oligocene
Pennsylvanian
macrocharcoal
archicontinent
Phanerozoic eon
Cretaceous
palaeoflora
Phanerozoic aeon
Phanerozoic
Cretaceous period
Paleogene
fifties
Archean eon
Archeozoic