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Isurus facts for kids

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Temporal range: Late Cretaceous - recent
Shortfin mako swfsc.jpg
Shortfin mako shark (I. oxyrinchus)
Isurus paucus.jpg
Longfin mako shark (I. paucus)
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Lamniformes
Family: Lamnidae
Genus: Isurus
Rafinesque, 1810
Type species
Isurus oxyrinchus
Rafinesque, 1810
  • 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.


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 680 kg (1,500 lb). They both have a distinctive blue-gray color scheme common among mackerel sharks.

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

The family Lamnidae also includes the great white shark and the porbeagle. Mako sharks are capable of swimming at speeds up to 32 km/h (20 mph). The great white shark is also closely related to an ancient mako shark species, Isurus hastalis. However, fossil evidence suggests I. hastalis, like the great white shark, also belonged to the genus Carcharodon.


The genus contains these species:

  • Isurus oxyrinchus (Rafinesque, 1810) (shortfin mako shark)
  • Isurus paucus (Guitart-Manday, 1966) (longfin mako shark)
  • Isurus desori (Agassiz, 1843)
  • Isurus escheri Agassiz 1843 (serrated mako shark)
  • Isurus flandricus (Leriche, 1910)
  • Isurus minutus (Agassiz, 1843)
  • Isurus nakaminatoensis (Saito, 1961)
  • Isurus planus (Agassiz, 1856) (hooked-tooth mako shark)
  • Isurus praecursor (Leriche, 1905)
  • Isurus rameshi (Mehrotra, Mishra & Srivastava, 1973)
  • Isurus spallanzani Rafinesque 1810
Lamnidae - Isurus hastalis
Fossil teeth of I. hastalis

See also

Kids robot.svg In Spanish: Isurus para niños

  • List of prehistoric cartilaginous fish
  • Shark meat
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