This category includes biological taxa that evolved during the Silurian period of geologic time, between 443.8 and 419.2 million years ago and have not yet gone extinct.
Pages in category "Extant Silurian first appearances"
The following 24 pages are in this category, out of 24 total. This list may not reflect recent changes.
This category includes biological taxa that evolved during the Silurian period of geologic time, between 443.8 and 419.2 million years ago and have not yet gone extinct.
Pages in category "Extant Silurian first appearances"
The following 24 pages are in this category, out of 24 total. This list may not reflect recent changes.