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Silurian

Silurian

1 9.9
A time 443 to 419 million years ago when many sea animals and early land plants appeared
  • noun
  • /sɪˈlʊəriən/
  • Specialized
translation icon : silúrico
  • Marine fossils from the Silurian period provide insight into ancient ocean ecosystems.

Examples

  • The Silurian was a critical time for the evolution of the first air-breathing animals.

  • During the Silurian, significant geological changes shaped the landscape of our planet.

  • Along the south coast of England about four hundred million years ago in the Silurian," said the grad student.

    Fiction book (1998)
  • So the Silurian was before the Devonian and before the Silurian was Ordovician.

  • Therefore, any calm person who is not blind or idiotic can see that in the Old Oolitic Silurian.

    Blog text (14)

Synonyms

Silurian period
vsSilurian
  • Specialized
1 8.8

A time about 440 million years ago when the first animals began to breathe air and many shallow seas existed

is the same interval but described by its position between two other periods

Compounds

Silurian period
  • Specialized
1 8.8

A time about 440 million years ago when the first animals began to breathe air and many shallow seas existed

Surface Forms

Silurian singular
Silurians plural

Etymology

Silurian was named after an ancient people called the Silures, who lived where Wales is now, because geologists first studied rocks of this age there. So Silurian refers to that very old time in Earth’s history and the fossils and rocks from it.