Polyipnus

Polyipnus
Temporal range: 33.9–0 Ma Early Oligocene to Present[1]
Polyipnus triphanos
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Division: Teleostei
Order: Stomiiformes
Family: Sternoptychidae
Subfamily: Sternoptychinae
Genus: Polyipnus
Günther, 1887

Polyipnus is a genus of oceanic ray-finned fish in the family Sternoptychidae. This is the largest genus of the marine hatchetfishes subfamily Sternoptychinae and indeed of the entire Sternoptychidae. It is not quite as apomorphic as their relatives; it may be that the genus is actually a paraphyletic assemblage of less advanced Sternoptychinae and would need to be split.[2]

Fossils of this genus show that they have existed at least since the Early Oligocene, about 30 million years ago.[1]

Species

There are currently 34 recognized species in this genus:

References

  1. ^ a b Sepkoski, J.J.Jr (2002). "A Compendium of Fossil Marine Animal Genera". Bulletins of American Paleontology. 363: 1–560.
  2. ^ Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Polyipnus". FishBase. January 2016 version.
  3. ^ Harold, A.S.; Kemp, I.M.; Shore, S.K. (2016). "A new species of Polyipnus (Teleostei: Stomiiformes) from the western Pacific, with comments on the P. triphanos species complex". Zootaxa. 4111 (5): 555–564. doi:10.11646/zootaxa.4111.5.2. PMID 27395102.
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