Gadiformes

Gadiformes
Gadus morhua
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Gadiformes
Goodrich, 1909
Families

Gadiformes are an order of ray-finned fish, also called the Anacanthini, that includes the cod and its allies. Many major food fish are in this order. They are found in marine waters throughout the world and the vast majority of the species are found in temperate or colder regions (tropical species are typically deep-water). A few species may enter estuaries but only one, the burbot (Lota lota), is a freshwater fish.

Common characteristics include the positioning of the pelvic fins (if present), below or in front of the pectoral fins. Gadiformes are physoclists, which means their gas bladders do not have a pneumatic duct. The fins are spineless. Gadiform fish range in size from the codlets, which may be as small as 7 cm (2.8 in) in adult length, to the Atlantic cod, Gadus morhua, which reaches up to 2 m (6.6 ft).[2]

Timeline of genera

Quaternary Neogene Paleogene Cretaceous Holocene Pleistocene Pliocene Miocene Oligocene Eocene Paleocene Late Cretaceous Early Cretaceous Pollachius Melanogrammus Microgadus Theragra Gadella Pseudophycis Brosme Gadomus Gadus Bolbocara Eclipes Laemonema Lepidion Merlangius Molva Physiculus Ventrifossa Trichiurichthys Bregmacerinia Coryphaenoides Micromesistius Trisopterus Palaeomolva Pseudoraniceps Gadiculus Gaidropsarus Hymenocephalus Lota Phycis Squalogadus Eophycis Bathygadus Macruronus Tripterophycis Bregmaceros Melanonus Merluccius Nezumia Raniceps Urophycis Palaeogadus Trichurides Rhinocephalus Paratichthys Rankinian Quaternary Neogene Paleogene Cretaceous Holocene Pleistocene Pliocene Miocene Oligocene Eocene Paleocene Late Cretaceous Early Cretaceous

References

  1. 1 2 3 4 Iwamoto, T., Nakayama, N., Shao, K.-T. & Ho, H.-C. (2015): Synopsis of the Grenadier Fishes (Gadiformes; Teleostei) of Taiwan. Proceedings of the California Academy of Sciences, (Series 4), 62 (3): 31-126.
  2. ↑ Cohen, D.M. (1998). Paxton, J.R.; Eschmeyer, W.N., eds. Encyclopedia of Fishes. San Diego: Academic Press. pp. 130–132. ISBN 0-12-547665-5.
This article is issued from Wikipedia - version of the 9/2/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.