devonian

• اسم يُطلق على فترة جيولوجية من عصور حقبة الحياة القديمة، وعلى الصخور والطبقات والأنظمة المكوّنة لها. ويُستعمل أيضًا للإشارة إلى الحقبة الديفونية في تاريخ الأرض.

A proper noun referring to a specific geological period or era, often associated with a particular time in Earth's history.

غير معدود · اسم علم

1. Geological periodC1formalscientific

   The fourth period of the Paleozoic Era, spanning from about 419 to 359 million years ago, known for the diversification of fish and the appearance of the first amphibians and ammonites.

   العصر الديفوني

   • The Devonian is often called the Age of Fishes.
   • Fossils from the Devonian period are found in many parts of the world.
   • During the Devonian, the first forests began to appear on land.

   المرادفاتage of fishes