Isurus

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Isurus
Temporal range: Cretaceous - recent
[1][2]
Shortfin mako swfsc.jpg
Shortfin mako shark (I. oxyrinchus)
Isurus paucus.jpg
Longfin mako shark (I. paucus)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Superorder: Selachimorpha
Order: Lamniformes
Family: Lamnidae
Genus: Isurus
Rafinesque, 1810
Type species
Isurus oxyrinchus
Rafinesque, 1810
Synonyms
  • Isuropsis Gill, 1862
  • Lamiostoma Glikman, 1964
  • Oxyrhina Agassiz, 1838
  • Oxyrrhina Bonaparte, 1846
  • Plectrostoma Gistel, 1848

Isurus is a genus of mackerel sharks in the family Lamnidae, commonly known as the mako sharks.

Description[edit]

The two living species are the common shortfin mako shark (I. oxyrinchus) and the rare longfin mako shark (I. paucus). They range in length from 2.5 to 4.5 m (8.2 to 14.8 ft), and have an approximate maximum weight of 800 kg (1,800 lb).

Several extinct species are known from fossils found in sediments from Cretaceous to Quaternary (age range: 99.7 to 0.781 million years ago).[1]

The family Lamnidae also includes the great white shark and the porbeagle. Mako sharks are capable of swimming at speeds up to 60 km/h (37 mph), and jumping up to 7 m (23 ft) into the air. The great white shark is also closely related to an ancient mako shark, Isurus hastalis. However, fossil evidence suggests I. hastalis belonged to the genus Carcharodon. [3]

Species[edit]

The genus contains these species:[1]

Fossil teeth of I. hastalis

See also[edit]

References[edit]

  1. ^ a b c Fossilworks
  2. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology. 364: 560. Archived from the original on 2011-09-30. 
  3. ^ "Origin of the white shark Carcharodon (Lamniformes: Lamnidae) based on recalibration of the Upper Neogene Pisco Formation of Peru". Wiley Online Library. Retrieved 22 January 2017. 
  4. ^ Smith, J.L.B. Sharks of the Genus Isurus Rafinesque, 1810. Ichthyological Bulletin; No. 6. Department of Ichthyology, Rhodes University, Grahamstown, South Africa
  5. ^ Tony Ayling & Geoffrey Cox, Collins Guide to the Sea Fishes of New Zealand, William Collins Publishers Ltd, Auckland, New Zealand 1982 ISBN 0-00-216987-8
  6. ^ Isurus hastalis on Fossilworks