Witaaspis
Encyclopedia
Witaaspis was an extinct genus of osteostraci
fish that lived in the Wenlock
and Ludlow stages of the Silurian
period.
Osteostraci
The class Osteostraci was a group of bony-armored jawless fish, termed "ostracoderms", that lived in what is now North America, Europe and Russia from the Middle Silurian to Late Devonian....
fish that lived in the Wenlock
Wenlock
Wenlock may refer to:Places* Little Wenlock, Shropshire, England* Wenlock Edge, limestone escarpment near Much Wenlock* Much Wenlock, Shropshire, England** Wenlock ** Much Wenlock and Severn Junction railway...
and Ludlow stages of the Silurian
Silurian
The Silurian is a geologic period and system that extends from the end of the Ordovician Period, about 443.7 ± 1.5 Mya , to the beginning of the Devonian Period, about 416.0 ± 2.8 Mya . As with other geologic periods, the rock beds that define the period's start and end are well identified, but the...
period.