noun a native or inhabitant of Siluria, an ancient region of Wales, or a member of an extinct Celtic tribe that inhabited this region
adjective relating to or characteristic of the Silurian period, which is a geological period lasting from approximately 443 to 419 million years ago
The Silurian period is a geological period that lasted from about 443 million to 419 million years ago.
The Silurian period saw the diversification of marine life, including the rise of jawed fish.
The Silurian period was characterized by a warm climate and high sea levels.
Many important fossil discoveries, including early fish and the first land plants, are from the Silurian period.
Silurian rocks are used as a marker for dating and correlating rock layers in different regions.
The term 'Silurian' is commonly used by geologists to refer to a geological period in the Paleozoic Era, lasting from approximately 443 to 419 million years ago.
Paleontologists often use the term 'Silurian' when studying fossils and ancient life forms that existed during this period in Earth's history.
Historians may refer to the 'Silurian' period when discussing ancient civilizations and events that took place during this time.