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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
Carboniferous rainforest collapse
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The Carboniferous rainforest collapse was a minor extinction event that occurred around 305 million years ago in the Carboniferous period. The event occurred at the end of the Moscovian and continued
Carboniferous
…glaciations, low sea level, and mountain building as the continents collided to form Pangaea. A minor marine and terrestrial extinction event, the Carboniferous rainforest collapse, occurred at the end of the period, caused by climate change. Atmospheric oxygen levels, originally thought to be consistently higher than today…
Coal forests continued after the Carboniferous rainforest collapse. These plant fossils are from one of those forests from about 5 million years after
Coal forests continued after the Carboniferous rainforest collapse. These plant fossils are from one of those forests from about 5 million years after the CRC. However, the composition of the forests changed from a lepidodendron-dominated forest to one of predominantly tree ferns and seed ferns.
Terrestrially adapted synapsids, the predecessors of the mammal lineage, like Archaeothyris were among the groups who quickly recovered after the coll
Terrestrially adapted synapsids, the predecessors of the mammal lineage, like Archaeothyris were among the groups who quickly recovered after the collapse.