Carboniferous
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Carboniferous යනු වසර මිලියන 359-299 කට පෙර Paleozoic යුගයේ පස්වන කාලපරිච්ඡේදය වේ.
Quick Facts Chronology, Etymology ...
Carboniferous | |
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358.9 ± 0.4 – 298.9 ± 0.15 Ma | |
Chronology | |
සැකිල්ල:Carboniferous graphical timeline | |
Etymology | |
Name formality | Formal |
Nickname(s) | Age of Amphibians |
Usage information | |
Celestial body | Earth |
Regional usage | Global (ICS) |
Time scale(s) used | ICS Time Scale |
Definition | |
Chronological unit | Period |
Stratigraphic unit | System |
First proposed by | William Daniel Conybeare and William Phillips, 1822 |
Time span formality | Formal |
Lower boundary definition | FAD of the Conodont Siphonodella sulcata (discovered to have biostratigraphic issues as of 2006)[1] |
Lower boundary GSSP | La Serre, Montagne Noire, France 43.5555°N 3.3573°E / 43.5555; 3.3573 |
GSSP ratified | 1990[2] |
Upper boundary definition | FAD of the Conodont Streptognathodus isolatus within the morphotype Streptognathodus wabaunsensis chronocline |
Upper boundary GSSP | Aidaralash, Ural Mountains, Kazakhstan 50.2458°N 57.8914°E / 50.2458; 57.8914 |
GSSP ratified | 1996[3] |
Atmospheric and climatic data | |
Sea level above present day | Falling from 120 m to present-day level throughout the Mississippian, then rising steadily to about 80 m at end of period[4] |
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