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# Late Ordovician life # Late Ordovician Extinctions # Ordovician geology # Ordovician events # Early Ordovician Extinctions # Early Ordovician life # Late Modern History of Christianity # Late Modern Christians # Late Cretaceous animals # Late Devonian life # Late Jurassic animals # the late trio # Late trio reptiles # Late tripartite tetrads # Late Trio animals # Late Triadic vertebrates # Late trio # Late Trio Extinctions # Archosaurs of the late Triassic # late afternoon
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الأوردوفيشي المتأخر (Info)


الأوردوفيشي المتأخر أو العلوي (باللاتينية: Late Ordovician)، وهي ثالث فترة أو نسق من نظام أو العصر الأوردوفيشي، امتد من  إلى  مليون سنة مضت، لمدة 14.6 مليون سنة تقريبا.

المقطع النموذجي

تم تعريف قاعدة الأوردوفيشي المبكر بنفس طريقة تحديد نقطة ومقطع طبقة الحدود العالمية (GSSP) لمرحلة الساندبي في "قطاع فاغلسانغ" ( ) عند سولارب بروك شرق لوند (سكونا، السويد) وهي نتوء من طفل وصخر طيني. وتم تعريف قاعدة الساندبي بأول ظهور لأنواع الجرابتوليت الخطيات الخيطية الرقيقة (Nemagraptus gracilis) بارتفاع 1.4م تحت طبقة الفوسفوريت الاستدلالية. وبالنسبة إلى حدوده العلوية فقد تم تعريفها بأول ظهور لأنواع الجرابتوليت اكيدوغرابتوس اسينسوس (Akidograptus ascensus).

الأقسام الفرعية

تم تقسيم الأوردوفيشي المتأخر بواسطة اللجنة الدولية للطبقات لثلاث مراحل (من الأدنى للأعلي):

  • الساندبي :  إلى  مليون سنة مضت، لمدة 5.4 مليون سنة تقريبا
  • الكاتي :  إلى  مليون سنة مضت، لمدة 7.8 مليون سنة تقريبا
  • الهيرنانتي :  إلى  مليون سنة مضت، لمدة 1.4 مليون سنة تقريبا
Source: wikipedia.org
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Bibliographic Index Of American Ordovician And Silurian Fossils

Bibliographic Index Of American Ordovician And Silurian Fossils
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Late Pagans

Late Pagans

 
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Egypt In The Late Era

Egypt In The Late Era

 
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Late Days

Late Days
Mecca In The Late Fourteenth Century

Mecca In The Late Fourteenth Century

 
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Late December

Late December
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Good Tombs In The Late Era

Good Tombs In The Late Era

 
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Mecca In The Late Nineteenth Century

Mecca In The Late Nineteenth Century
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Late

Late
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Late Abbasid Caliphs

Late Abbasid Caliphs
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Revolutions Of The Late Twentieth Century

Revolutions Of The Late Twentieth Century
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About Late Style

About Late Style
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Late Rise

Late Rise
The Island Country In The Late Abbasid Era

The Island Country In The Late Abbasid Era

 
The Island Country In The Late Abbasid Era

The Island Country In The Late Abbasid Era

 
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The Late Dress And Other Stories

The Late Dress And Other Stories
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Mythologies Of Late

Mythologies Of Late
Pride Necklaces In The Strange Returns Of The Early And Late

Pride Necklaces In The Strange Returns Of The Early And Late
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Rural Development Late Put Early!

Rural Development Late Put Early!
Flags Of Palestine In The Late Ottoman Era 217

Flags Of Palestine In The Late Ottoman Era 217

 
Explanation Of The Strange Words In The Book Of Feats In The Strange Returns Of The Early And Late

Explanation Of The Strange Words In The Book Of Feats In The Strange Returns Of The Early And Late

 
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The Late Abbasid Caliphs (575 - 656 A.h.) - The Abbasid Caliphs Series

The Late Abbasid Caliphs (575 - 656 A.h.) - The Abbasid Caliphs Series
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It Is Never Too Late to Mend

It Is Never Too Late to Mend
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Late Longing

Late Longing
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Late Supper (play)

Late Supper (play)
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Late Joy Overwhelms Me

Late Joy Overwhelms Me
This Is So Late

This Is So Late

 
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Its Too Late

Its Too Late
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Late Longing And Other Stories

Late Longing And Other Stories
Public Domain
Forty Minutes Late 1909

Forty Minutes Late 1909
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The Late Mrs. Null

The Late Mrs. Null
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The Late Arab Days By Saad Al-abdullah Al-suwayan

The Late Arab Days By Saad Al-abdullah Al-suwayan
  (1)
Flags Of Palestine In The Late Ottoman Era

Flags Of Palestine In The Late Ottoman Era
The Literature Of The Late Muslims Unknown In Spain And The Literature Of The Moriscos

The Literature Of The Late Muslims Unknown In Spain And The Literature Of The Moriscos

 
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Ahmed Ali Barqi - Coffins In The Late Period

Ahmed Ali Barqi - Coffins In The Late Period

 
The History Of The Total Anecdotes Of What Happened To The Early And Late 4496

The History Of The Total Anecdotes Of What Happened To The Early And Late 4496

 

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Mustafa Mahmoud The Words Of God Almighty Ibrahim AlFiqi Muhammad Bin Saleh AlUthaymeen Ibn Qayyim Al-Jawziyya Ahmed Khaled Tawfiq Fahad Amer AlAhmadi Muhammad Metwally AlShaarawi Ali Bin Jaber AlFifi Dale Carnegie Islam Gamal Sayed Qutb Muhammad AlGhazali Omar AlHourani Agatha Christie Muhammad Bin Ismail AlBukhari Abbas AlAkkad Abu Hamid AlGhazali Najib Mahfouz Fyodor Dostoevsky Jalal AlDin AlSuyuti Bin Taymiyyah Ismail Bin Omar Bin Katheer AlQurashi Aldamashqiu Ibrahim Al-Sukran Mustafa AlAdawi More of Authors of books