Pennsylvanian
Query URLs
https://term.museum-digital.de/md-de/tag/12899
- 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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Ansitzende Sporophyllähren und Blattwirtel in kohliger Erhaltung / Ansitzende Calamostachys tuberculata und Annularia stellata
Das Fossil in kohliger...
Object information
Image: Museum für Naturkunde Chemnitz - RR-F -
Farn (Neuropteris heteophylla)
Schwarzer Ölschiefer mit...
Object information
Image: Drilandmuseum - CC BY-NC-SA -
Schuppenbaum (Lepidodendron)
Schwarzer Ölschiefer mit...
Object information
Image: Drilandmuseum - CC BY-NC-SA
References
Synonyms
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