Order Ctenacanthiformes Rank Genus | Phylum Chordata Family Ctenacanthidae | |
Similar Sphenacanthus, Ctenacanthiformes, Ctenacanthus, Glikmanius, Triodus |
Aquarius party 2008 bal wodnika
Wodnika is an extinct genus of shark which lived in the Late Permian period in the present area of Germany and Russia. It measured about 1 m (3.2 ft) in length and its tail shape indicates it was probably a good swimmer. Internally, the cartilage skeleton is preserved on the fossil, which is fairly rare for fossilized sharks.
References
Wodnika Wikipedia(Text) CC BY-SA