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Carboniferous
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The Carboniferous is a geologic period and system of the Paleozoic era that spans 60 million years, from the end of the Devonian Period 358.86 Ma to the beginning of the Permian Period, 298.9 Ma. It i
Cliff section through the Serpukhovian Red Wharf Limestone Formation, Wales. A marine limestone at the base of the cliff is overlain by an orange-colo
Cliff section through the Serpukhovian Red Wharf Limestone Formation, Wales. A marine limestone at the base of the cliff is overlain by an orange-coloured fluvial sandstone. Subaerial exposure of the limestone during a period of falling sea level resulted in the formation of a karstic surface, which has then been infilled by the river sands. A thin, estuarine silty mudstone overlays the sandstone, which in turn is overlain by a second marine limestone.
Hyden Formation over Pikeville Formation in the Pennsylvanian of Kentucky, US. The exposure has Pennsylvanian-aged cyclothemic sedimentary rocks of th
Hyden Formation over Pikeville Formation in the Pennsylvanian of Kentucky, US. The exposure has Pennsylvanian-aged cyclothemic sedimentary rocks of the Breathitt Group. The upper part of the roadcut is Hyden Formation, consisting of mixed siliciclastics and coal. The lower part is Pikeville Formation, also having mixed siliciclastics and coal.
Etching depicting some of the most significant plants of the Carboniferous
Etching depicting some of the most significant plants of the Carboniferous
Ancient in situ lycopsid, probably Sigillaria, with attached stigmarian roots, Joggins Formation, Canada
Ancient in situ lycopsid, probably Sigillaria, with attached stigmarian roots, Joggins Formation, Canada
Permian
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The Permian is a geologic period and stratigraphic system which spans 47 million years, from the end of the Carboniferous Period 298.9 Ma to the beginning of the Triassic Period 251.902 Ma. It is the
Carboniferous
…and system of the Paleozoic era that spans 60 million years, from the end of the Devonian Period 358.86 Ma (million years ago) to the beginning of the Permian Period, 298.9 Ma. It is the fifth period of the Phanerozoic eon. In North America, the Carboniferous is often treated as two separate geological periods…
Selwyn Rock, South Australia, an exhumed glacial pavement of Permian age
Selwyn Rock, South Australia, an exhumed glacial pavement of Permian age
Hercosestria cribrosa, a reef-forming productid brachiopod (Middle Permian, Glass Mountains, Texas)
Hercosestria cribrosa, a reef-forming productid brachiopod (Middle Permian, Glass Mountains, Texas)
Fossil and life restoration of Permocupes sojanensis, a permocupedid beetle from the Middle Permian of Russia
Fossil and life restoration of Permocupes sojanensis, a permocupedid beetle from the Middle Permian of Russia
Edaphosaurus pogonias and Platyhystrix – Early Permian, North America and Europe
Edaphosaurus pogonias and Platyhystrix – Early Permian, North America and Europe