Temporal range: 56–0Ma Thanetian to Present
|Shortfin mako shark (I. oxyrinchus)|
|Longfin mako shark (I. paucus)|
Isurus is a genus of mackerel sharks in the family Lamnidae, commonly known as the mako sharks. There are two living species, the common shortfin mako shark (Isurus oxyrinchus) and the rare longfin mako shark (Isurus paucus), and several extinct species known from fossils. They range in length from 2.5 to 4.5 metres (9 to 15 feet), and have an approximate maximum weight of 800 kg (1,750 lb). The family Lamnidae also includes sharks such as the great white shark and porbeagle. The mako shark is capable of swimming at speeds of up to 60 km/h, and jumping up to 7 metres (24 ft) in the air.
The genus contains two living species:
- Isurus oxyrinchus Rafinesque, 1810 (shortfin mako)
- Isurus paucus Guitart-Manday, 1966 (longfin mako)
- Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology 364: 560. Retrieved 2008-01-09.
- Fitzgerald, Erich (2004). A review of the Tertiary fossil Cetacea (Mammalia) localities in wales port taf Museum Victoria 61 (2). pp. pp. 183–208. Retrieved 2009-01-05.
- Applegate, Shelton P.; Dale E. Russell (1970). The Vertebrate Fauna of the Selma Formation of Alabama. Part VII. Part VIII. The Mosasaurs The Fishes. Chicago: Field Museum of Natural History. pp. 387–430. OCLC 50419737.
- 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