Pennsylvanian
Query URLs
https://term.museum-digital.de/md-de/tag/14367
- Note
- The Pennsylvanian (/ˌpɛnsəlˈveɪni.ən/ pen-səl-VAYN-i-ən, also known as Upper Carboniferous or Late Carboniferous) is, in the ICS geologic timescale, the younger of two subperiods (or upper of two subsystems) of the Carboniferous Period. It lasted from roughly 323.2 million years ago to 298.9 million years ago. As with most other geochronologic units, the rock beds that define the Pennsylvanian are well identified, but the exact date of the start and end are uncertain by a few hundred thousand years. The Pennsylvanian is named after the U.S. state of Pennsylvania, where the coal-productive beds of this age are widespread.
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Farn Pecopteris
Dieser Wedel des Baumfarns...
Object information
Image: Geomuseum der WWU Münster - CC BY-NC-SA -
Süßwassermuschel Carbonicola
Dies sind zwei Exemplare der...
Object information
Image: Geomuseum der WWU Münster - CC BY-NC-SA
References
Synonyms
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