Permian යන වසර ම ල යන 299 252 කට ප ර එනම Paleozoic ය ගය හයවන සහ අවස න ක ලපර ච ඡ දය ව Permian298 9 0 15 251 902 0 024 Ma

Permian යනු වසර මිලියන 299-252 කට පෙර, එනම් Paleozoic යුගයේ හයවන සහ අවසාන කාලපරිච්ඡේදය වේ.

Permian

298.9 ± 0.15 – 251.902 ± 0.024 (Ma)

PreЄ

Chronology

−300 —

–

−295 —

–

−290 —

–

−285 —

–

−280 —

–

−275 —

–

−270 —

–

−265 —

–

−260 —

–

−255 —

–

−250 —

Carboniferous

P
e
r
m
i
a
n

Triassic

←

Subdivision of the Permian according to the , as of 2022.
Vertical axis scale: millions of years ago.

Etymology

Name formality

Formal

Usage information

Regional usage

Global ()

Time scale(s) used

ICS Time Scale

Definition

Chronological unit

Stratigraphic unit

Time span formality

Formal

Lower boundary definition

of the within the chronocline.

Lower boundary GSSP

, Ural Mountains, Kazakhstan
50°14′45″N 57°53′29″E / 50.2458°N 57.8914°E

GSSP ratified

1996

Upper boundary definition

FAD of the Conodont .

Upper boundary GSSP

, , China
31°04′47″N 119°42′21″E / 31.0798°N 119.7058°E

GSSP ratified

2001

ආශ්‍රිත

(with link directory)

මූලාශ්‍ර

"Chart/Time Scale". www.stratigraphy.org. International Commission on Stratigraphy.
Davydov, Vladimir; Glenister, Brian; Spinosa, Claude; Ritter, Scott; Chernykh, V.; Wardlaw, B.; Snyder, W. (March 1998). "Proposal of Aidaralash as Global Stratotype Section and Point (GSSP) for base of the Permian System" (PDF). Episodes. 21: 11–18. doi:10.18814/epiiugs/1998/v21i1/003. සම්ප්‍රවේශය 7 December 2020.
Hongfu, Yin; Kexin, Zhang; Jinnan, Tong; Zunyi, Yang; Shunbao, Wu (June 2001). "The Global Stratotype Section and Point (GSSP) of the Permian-Triassic Boundary" (PDF). Episodes. 24 (2): 102–114. doi:10.18814/epiiugs/2001/v24i2/004. සම්ප්‍රවේශය 8 December 2020.

භාහිර සබැඳි

University of California offers a more modern Permian stratigraphy
Classic Permian strata in the Glass Mountains of the Permian Basin
"International Commission on Stratigraphy (ICS)". Geologic Time Scale 2004. සම්ප්‍රවේශය September 19, 2005.
Examples of Permian Fossils
Permian (chronostratigraphy scale)
Schneebeli-Hermann, Elke (2012), "Extinguishing a Permian World", Geology 40 (3): 287–288,
doi:10.1130/focus032012.1
,
: 2012Geo....40..287S

[icstimescale-1] "Chart/Time Scale". www.stratigraphy.org. International Commission on Stratigraphy.

[2] Davydov, Vladimir; Glenister, Brian; Spinosa, Claude; Ritter, Scott; Chernykh, V.; Wardlaw, B.; Snyder, W. (March 1998). "Proposal of Aidaralash as Global Stratotype Section and Point (GSSP) for base of the Permian System" (PDF). Episodes. 21: 11–18. doi:10.18814/epiiugs/1998/v21i1/003. සම්ප්‍රවේශය 7 December 2020.

[3] Hongfu, Yin; Kexin, Zhang; Jinnan, Tong; Zunyi, Yang; Shunbao, Wu (June 2001). "The Global Stratotype Section and Point (GSSP) of the Permian-Triassic Boundary" (PDF). Episodes. 24 (2): 102–114. doi:10.18814/epiiugs/2001/v24i2/004. සම්ප්‍රවේශය 8 December 2020.