Pycnosteus
Encyclopedia
Pycnosteus is an extinct genus
of jawless fish from the Devonian
. It is thought to have cruised through vegetation, eating small invertebrates which it knocked loose .
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of jawless fish from the Devonian
Devonian
The Devonian is a geologic period and system of the Paleozoic Era spanning from the end of the Silurian Period, about 416.0 ± 2.8 Mya , to the beginning of the Carboniferous Period, about 359.2 ± 2.5 Mya...
. It is thought to have cruised through vegetation, eating small invertebrates which it knocked loose .
Sources
- Fishes of the World by Joseph S. Nelson
- Vertebrate Fossils and the Evolution of Scientific Concepts by W. Sargeant