Eothynnus

Eothynnus
Temporal range:
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Carangiformes
Suborder: Carangoidei
Family: Carangidae
Genus: †Eothynnus
Woodward, 1901
Species:
†E. salmoneus
Binomial name
†Eothynnus salmoneus
Woodward, 1901

Eothynnus is an extinct species of prehistoric jackfish that lived during the lower Eocene of Europe and eastern North America. It contains a single species, E. salmoneus.[1][2] It is known primarily from some preserved skulls from what is now the Isle of Sheppey (as a part of the London Clay Lagerstatten) in England.[3] A single vertebra is also known from the Nanjemoy Formation of Virginia, US.[4]

It was originally thought to be a tuna or mackerel, hence the generic name translating as "dawn" or "Eocene tuna."[2] Later, it was reappraised to be a jackfish, related to Teratichthys and Eastmanalepes (syn. "Caranx primaevus").[5][6] It is one of the largest fish known from the London Clay.[4]

See also

References

  1. ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on 2011-07-23. Retrieved 2009-02-27.
  2. ^ a b Geology, British Museum (Natural History) Department of; Woodward, Arthur Smith (1901). Catalogue of the Fossil Fishes in the British Museum (Natural History): Actinopterygian Teleostomi of the suborders Isospondyli (in part), Ostariophysi, Apodes, Percesoces, Hemibranchii, Acanthopterygii, and Anacanthini. order of the Trustees.
  3. ^ "PBDB Taxon". paleobiodb.org. Retrieved 2025-02-14.
  4. ^ a b Weems, Robert E. (2021). "ADDITIONS TO THE BONY FISH FAUNA FROM THE EARLY EOCENE NANJEMOY FORMATION OF MARYLAND AND VIRGINIA (U.S.A)". The Mosasaur : The Journal of the Delaware Valley Paleontological Society. XI: 117–152.
  5. ^ Monsch, Kenneth A. (2004). "Revision of the scombroid fishes from the Cenozoic of England". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 95 (3–4): 445–489. Bibcode:2004EESTR..95..445M. doi:10.1017/S0263593300001164. ISSN 1755-6929.
  6. ^ Bannikov, A. F. (1987). "On the taxonomy, composition and origin of the family Carangidae". Journal of Ichthyology. 27 (1): 1–8.


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