Acrotemnus
Acrotemnus Temporal range: Turonian, 93.9–89.8 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ | |
---|---|
Acrotemnus holotype | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | †Pycnodontiformes |
Family: | †Pycnodontidae |
Genus: | †Acrotemnus Agassiz, 1836 |
Type species | |
†Acrotemnus faba Louis Agassiz, 1836 | |
Species | |
| |
Synonyms | |
|
Acrotemnus is an extinct genus of marine pycnodontid ray-finned fish from various areas of the Tethys Sea that lived during the Turonian stage of the Upper Cretaceous. The genus comprises three species A. faba,[1] A. streckeri, and A. megafrendodon.[2]
Description
Acrotemnus was initially known from just the type species A. faba described by Louis Agassiz in 1843 from specimens collected in Niger.[1] However, Shimada, Portillo, and Cronin, 2021 described the specimen TxVP 43056-3 as Acrotemnus cf. A. streckeri lumping the whole genus Macropycnodon into Acrotemnus.[2]
Classification
In its description, Agassiz, 1836 recovers it as a pycnodontid.[1] Shimada, Portillo, and Cronin, 2021 retain this placement in their redescription of A. streckeri, and A. megafrendodon.[2]
See also
References
- ^ a b c L. Agassiz. 1836. Recherches Sur Les Poissons Fossiles. Tome I (livr. 18). Imprimerie de Petitpierre, Neuchatel
- ^ a b c Shimada, Kenshu; Portillo, Dianne; Cronin, Timothy (August 2021). "A new pycnodont specimen (Actinopterygii: Pycnodontiformes) from the Upper Cretaceous of Big Bend National Park, Texas, USA, confirming the bony fish genus Macropycnodon as a junior synonym of Acrotemnus". Cretaceous Research. 124. doi:10.1016/j.cretres.2021.104797. S2CID 233924239. Retrieved 1 December 2023.
- v
- t
- e
| |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
This article about a prehistoric ray-finned fish is a stub. You can help Wikipedia by expanding it. |
- v
- t
- e
This article about a Cretaceous fish is a stub. You can help Wikipedia by expanding it. |
- v
- t
- e