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The Carboniferous rainforest collapse (CRC) was a minor extinction event that occurred around 305 million years ago in the Carboniferous period. [1] The event occurred at the end of the Moscovian and continued into the early Kasimovian stages of the Pennsylvanian (Upper Carboniferous).
The Carboniferous rainforest collapse was caused by a cooler drier climate that initially fragmented, then collapsed the rainforest ecosystem. [2] During most of the rest of Carboniferous times, the coal forests were mainly restricted to refugia in North America (such as the Appalachian and Illinois coal basins) and central Europe.
It is the third stage in the Pennsylvanian (late Carboniferous), lasting from 307 to 303.7 Ma. [3] The Kasimovian Stage follows the Moscovian and is followed by the Gzhelian . The Kasimovian saw an extinction event which occurred around 305 mya, referred to as the Carboniferous Rainforest Collapse . [ 4 ]
Carboniferous: Carboniferous rainforest collapse: 305 Ma: Possiblities include a series of rapid changes in climate, or volcanism of the Skagerrak-Centered Large Igneous Province [34] Serpukhovian extinction ~ 325 Ma Onset of the Late Paleozoic icehouse: Devonian: Hangenberg event: 359 Ma
Cooler climate causes Carboniferous rainforest collapse: 251.9: Permian–Triassic extinction event: 199.6: Triassic–Jurassic extinction event, causes as yet unclear 66: Perhaps 30,000 years of volcanic activity form the Deccan Traps in India, or a large meteor impact. 66
The Moscovian is in the ICS geologic timescale a stage or age in the Pennsylvanian, the youngest subsystem of the Carboniferous.The Moscovian age lasted from 315.2 to 307 Ma, [2] is preceded by the Bashkirian and is followed by the Kasimovian.
The Mississippian (/ ˌ m ɪ s ɪ ˈ s ɪ p i. ə n / MISS-iss-IP-ee-ən), [5] also known as Lower Carboniferous or Early Carboniferous, is a subperiod in the geologic timescale or a subsystem of the geologic record. It is the earlier of two subperiods of the Carboniferous period lasting from roughly 358.9 to 323.2
Subdivisions of the Carboniferous system in Europe compared with the official ICS-stages (as of 2024) The Westphalian is a regional stage or age in the regional stratigraphy of northwest Europe, with an age between roughly 315 [ 1 ] [ 2 ] and 307 [ 1 ] [ 3 ] Ma (million years ago) .
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