Tachynectes
| Tachynectes Temporal range: | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Myctophiformes |
| Family: | Myctophidae |
| Genus: | †Tachynectes von der Marck, 1863 |
| Type species | |
| †Tachynectes macrodactylus von der Marck, 1863 | |
| Species | |
| |
Tachynectes is an extinct genus of prehistoric ray-finned fish that lived from the Turonian to the Campanian.[1]
Description
[edit]Tachynectes is characterized by enlarged pectoral fins, which are supported by 11-12 fin rays and are disconnected from the body outside of their bases. Its spine consists of a varying number of vertebrae, ranging from 76 to 81, which are not visually distinguishable between abdominal and caudal vertebrae.[2]
See also
[edit]
References
[edit]- ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Retrieved 2009-02-27.
- ^ Dietze, Kathrin (18 November 2008). "Morphology and phylogenetic relationships of certain neoteleostean fishes from the Upper Cretaceous of Sendenhorst, Germany". Cretaceous Research. 30 (3): 559–574. Retrieved 22 February 2024.
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