Thyestes (fish)
Encyclopedia
Thyestes was an extinct genus of ostracoderm
fish of Europe
that lived in the Late Silurian
Wenlock
epoch. It superficially resembles Cephalaspis
, but was closely related to Auchenaspis
and Tremataspis
.
Ostracoderm
Ostracoderms are any of several groups of extinct, primitive, jawless fishes that were covered in an armor of bony plates. They belong to the taxon Ostracodermi, and their fossils are found in the Ordovician and Devonian Period strata of North America and Europe...
fish of Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
that lived in the Late 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...
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...
epoch. It superficially resembles Cephalaspis
Cephalaspis
Cephalaspis was a genus of armored goldfish-sized to trout-sized detritivorous fish that lived in freshwater streams and estuaries of early Devonian Western Europe...
, but was closely related to Auchenaspis
Auchenaspis
Auchenaspis salteri is an extinct species of armored jawless fish of the order Thyestiida from the Late Silurian of England. In England, A. salteris fossils are found in extreme abundance in the Lower Old Red Sandstone strata in Ledbury, Herefordshire.A...
and Tremataspis
Tremataspis
Tremataspis is an extinct genus of primitive jawless fish from the Silurian period of what is now Estonia.An osteostracid, Tremataspis was about in length, and had an armored shield covering its head. Compared with its relatives, the shield was unusually elongated, covering the whole front of the...
.