Biology:Pharyngolepis
From HandWiki
Revision as of 23:43, 26 July 2021 by imported>TextAI (over-write)
Short description: Extinct genus of jawless fishes
| Pharyngolepis | |
|---|---|
| |
| |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Anaspida |
| Order: | †Birkeniiformes |
| Family: | †Pharyngolepididae Kiær 1924 corrig. |
| Genus: | †Pharyngolepis Kiaer 1911 |
| Type species | |
| Pharyngolepis oblonga Kiær 1911
| |
| Species | |
| |
Pharyngolepis is an extinct genus of primitive jawless fish that lived in the Silurian period of what is now Norway .
Pharyngolepis had well-developed anal and caudal fins, but no paired or dorsal fins that would have helped stabilise it in the water, and so was probably a poor swimmer, remaining close to the sea bottom. The pectoral fins were instead replaced by bony spines, possibly for protection against predators, and there was a row of spines along the back. It probably scooped up food from the ocean floor.[1]
References
- ↑ Palmer, D., ed (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 25. ISBN 1-84028-152-9.
Wikidata ☰ Q7180897 entry
 |  |
