Pycnodus
| Pycnodus Temporal range: Late Cretaceous–Lutetian | |
|---|---|
 | |
| Pycnodus platessus | |
| Fossil | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Pycnodontiformes |
| Family: | Pycnodontidae |
| Genus: | Pycnodus |
Pycnodus (from Greek for crowded teeth) is an extinct genus of ray-finned fish ranging from the Cretaceous to Eocene periods. As its name suggests, it is the type genus of Pycnodontiformes.
Pycnodus bernardi
The known whole fossils of Pycnodus are around 12 centimetres (5 in) long, and have a superficial resemblance to angelfish or butterflyfish. The animals, as typical of all other pycnodontids, had many knob-like teeth, forming pavements in the jaws with which to break and crush hard food substances, probably mollusks and echinoderms. These teeth are the most common form of fossil.
Pycnodus fossils have been found in present-day India, Northern Africa, Belgium, England, and Italy, regions corresponding with the Tethys Ocean.[1]
References
This article is issued from Wikipedia - version of the 6/12/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.