Isurus

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Isurus
Temporal range: Cretaceous - Recent
[1][2]
Shortfin mako swfsc.jpg
Shortfin mako shairk (I. oxyrinchus)
Isurus paucus.jpg
Langfin mako shairk (I. paucus)
Scienteefic clessification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Superorder: Selachimorpha
Order: Lamniformes
Family: Lamnidae
Genus: Isurus
Rafinesque, 1810
Teep 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 o mackerel shairks in the faimily Lamnidae, commonly kent as the mako shairks.

The twa livin species are the common shortfin mako shairk (I. oxyrinchus) an the rare langfin mako shairk (I. paucus). They range in lenth frae 2.5 tae 4.5 m (8.2 tae 14.8 ft), an hae a approximate maximum wicht o 800 kg (1,800 lb).

Several extinct species are kent frae fossils foond in sediments frae Cretaceous tae Quaternary (age range: 99.7 tae 0.781 million years ago).[1]

The faimily Lamnidae includes the great white shairk an the porbeagle an aw. Mako shairks are capable o soummin at speeds up tae 60 km/h (37 mph), an jumpin up tae 7 m (23 ft) intae the air. The great white shairk is closely relatit tae a auncient mako shairk an aw, Isurus hastalis.

Species[eedit | eedit soorce]

The genus conteens these species:[1]

Fossil teeth o Isurus hastalis

See an aw[eedit | eedit soorce]

References[eedit | eedit soorce]

  1. 1.0 1.1 1.2 Fossilworks
  2. Sepkoski, Jack (2002). "A compendium o fossil marine ainimal genera (Chondrichthyes entry)". Bulletins of American Paleontology. 364: 560. 
  3. Smith, J.L.B. Sharks of the Genus Isurus Rafinesque, 1810. Ichthyological Bulletin; No. 6. Department of Ichthyology, Rhodes University, Grahamstown, South Africa
  4. 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
  5. Isurus hastalis on Fossilworks

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