Enchodus

Taxobox
name = "Enchodus"
status = fossil
fossil_range = Late Cretaceous-Eocene

---

|thumb
image descr = Enchodus petrosus
regnum = Animalia
phylum = Chordata
classis = Actinopterygii
subclassis = Neopterygii
ordo = Salmoniformes
subordo = Enchodontoidei
familia = Enchodontidae
genus = "Enchodus"
genus_authority = Agassiz, 1835
subdivision_ranks = Species
subdivision =Several, including
* "Enchodus amicrodus"Verify source|date=August 2007
* "Enchodus ferox"Verify source|date=August 2007
* "Enchodus gladiolus"
* "Enchodus parvus"
* "Enchodus petrosus" (Cope, 1874)Verify source|date=August 2007
* "Enchodus schumardi"

"Enchodus" is an extinct genus of bony fish. It flourished during the Upper Cretaceous and was small to medium in size. One of the genus' most notable attributes are the large "fangs" at the front of the upper and lower jaws and on the palatine bones, leading to its misleading nickname among fossil hunters and paleoichthyologists, "the saber-toothed herring". These fangs, along with a long sleek body and large eyes, suggest "Enchodus" was a predatory species.

The largest-known species of "Enchodus" is "E. petrosus", remains of which are common from the Niobrara Chalk, the Mooreville Chalk, the Pierre Shale, and other geological formations deposited with the Western Interior Seaway and the Mississippi Embayment. Large indidivuals of this species had fangs measuring 6+ cm in length, though the total body length was only about 1.5 meters, giving its skull an appearance somewhat reminiscent of modern deep-sea fishes, such as anglerfish and viperfish. Other species were smaller, some like "E. parvus" were only some cm (a few inches) long.

Despite being a formidable predator, remains of "Enchodus" are commonly found among the stomach contents of larger predators, including sharks, other bony fish, mosasaurs, plesiosaurs and seabirds such as "Baptornis advenus".

In North America, "Enchodus" remains have been recovered from most states with fossiliferous Late Cretaceous rocks, including Kansas, Nebraska, Colorado, Alabama, Mississippi, Georgia, Tennessee, Wyoming, Texas, California, and New Jersey. The taxon is also known from coeval strata in Africa, Europe, and southwest Asia. "Enchodus" survived the Cretaceous–Tertiary extinction event and persisted at least into the Eocene.

References

* (1874): Review of the Vertebrata of the Cretaceous period found west of the Mississippi River. "U. S. Geolological Survey of the Territories, Bulletin" 1(2): 3-48.
* (2007): Oceans of Kansas: [http://www.oceansofkansas.com/Enchodus.html "Enchodus" sp. - The Sabre-Toothed Fish of the Cretaceous] . Version of 2007-MAY-29. Retrieved 2007-AUG-23.
* (1988): A check list of North American Marine Cretaceous vertebrates including fresh water fishes. "Occasional Paper of the Tyrrell Museum of Paleontology" #4.

External links

* http://www.courtenaymuseum.ca/paleo/paleo/enchodo.html