Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
Silurian period | Yes | No | No | No |
Silurian | Yes | No | No | No |
Silurian period (noun) | Silurian (noun) |
---|---|
the period from 425 million to 405 million years ago; characterized by the first air-breathing animals | the period from 425 million to 405 million years ago; characterized by the first air-breathing animals |