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词条 Cimolichthys
释义

  1. Description

  2. Distribution

  3. Gallery

  4. References

{{Taxobox
| fossil_range= {{Fossilrange|83.5|70.6}} Late Cretaceous[1]
| image = Cimolichthys_nepaholica_DMNHS54M_01.jpg
| image_width = 250px
| image_caption = Cimolichthys nepaholica specimen, Denver museum.
| regnum = Animalia
| phylum = Chordata
| classis = Actinopterygii
| ordo = Aulopiformes
| ordo_authority = Rosen, 1973
| subordo = Cimolichthyoidea
| familia = Cimolichthyidae[2]
| genus = Cimolichthys
| genus_authority = Leidy, 1857
| subdivision_ranks = Species
| subdivision =
  • C. anceps Cope, 1872
  • C. nepaholica Cope, 1872
  • C. gladiolus Cope, 1872
  • C. levesiensis Leidy, 1857
  • C. semianceps Cope, 1872
  • C. sulcatus Cope, 1872

}}

Cimolichthys is an extinct genus of 1.5- to 2.0-meter-long nektonic predatory aulopiformid fish.

Description

Although the closest living relatives of Cimolichthys are lancetfish and lizardfish, the living animals would have resembled very large freshwater pikes. Their bodies were covered by large, heavy scutes. Typical of this species are narrow lower jaws with several series of teeth. Remains of undigested fishes or squids have been found in collected specimens. They lived in the Late Cretaceous period, from the Cenomanian age (99.6 ± 0.9 Mya and 93.5 ± 0.8 Mya) to the Maastrichtian age (70.6 ± 0.6 Mya to 66 Mya).[3]

Distribution

Fossils of Cimolichthys are found in Cretaceous strata of North America (Canada and United States) and Europe.

Gallery

References

1. ^Paleobiology Database
2. ^Silva, Hilda, and Valéria Gallo. "Taxonomic review and phylogenetic analysis of Enchodontoidei (Teleostei: Aulopiformes)." Anais da Academia Brasileira de Ciências 83.2 (2011): 483-511.
3. ^Cimolichthys nepaholica at Oceans of Kansas
  • Sepkoski, Jack Sepkoski's Online Genus Database
{{Portal|Paleontology}}{{Taxonbar|from=Q1092144}}{{paleo-rayfinned-fish-stub}}{{Aulopiformes-stub}}

7 : Aulopiformes|Cretaceous bony fish|Prehistoric ray-finned fish genera|Late Cretaceous fish of North America|Mooreville Chalk|Fossil taxa described in 1857|Taxa named by Joseph Leidy

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