Pycnodus
Pycnodus is an extinct genus of pycnodont that lived during the Eocene.[1] The only species is P. apodus, meaning it is a monotypic genus. It is also the type genus of the Pycnodontiformes.
Description
[change | change source]Physical appearance
[change | change source]According to the fossils, Pycnodus could've been 30.6 cm (10 in) long.[2] It looked like a righteye flounder, but it was not related to them. It had a hump on its back, behind which the dorsal fin began. Like most genera, it had large rounded teeth to crush mollusks.
Where it is from
[change | change source]It is only known from the Monte Bolca lagerstätte.
Habitat
[change | change source]Species once included in the genus are found in what is now India, North Africa, Belgium, England, regions corresponding with the Tethys Ocean.[3]
Gallery
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Another fossil -
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Pycnodus rhombus
References
[change | change source]- ↑ "Sylvienodus, a new replacement genus for the Cretaceous pycnodontiform fish "Pycnodus" laveirensis, Comptes Rendus Palevol".
- ↑ "A quantitative approach to determine the taxonomic identity and ontogeny of the pycnodontiform fish Pycnodus (Neopterygii, Actinopterygii) from the Eocene of Bolca Lagerstätte, Italy, PeerJ".
- ↑ "Pycnodus lametae (Pycnodontidae), a Holostean Fish from Freshwater Upper Cretaceous Lameta Formation of Maharashtra, Geological Society of India".
Other websites
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