| 词条 | Isurus |
| 释义 |
| fossil_range = {{fossil range|99.7|0|Cretaceous - recent}}[1][1] | image = Shortfin mako swfsc.jpg | image_caption = Shortfin mako shark (I. oxyrinchus) | image2 = Isurus paucus.jpg | image2_caption = Longfin mako shark (I. paucus) | taxon = Isurus | authority = Rafinesque, 1810 | type_species = Isurus oxyrinchus | type_species_authority = Rafinesque, 1810 | synonyms =
}} Isurus is a genus of mackerel sharks in the family Lamnidae, commonly known as the mako sharks. DescriptionThe two living species are the common shortfin mako shark (I. oxyrinchus) and the rare longfin mako shark (I. paucus). They range in length from {{convert|2.5|to|4.5|m|ft|abbr=on}}, and have an approximate maximum weight of {{convert|800|kg|lb|abbr=on}}. Several extinct species are known from fossils found in sediments from Cretaceous to Quaternary (age range: 99.7 to 0.781 million years ago).[2] The family Lamnidae also includes the great white shark and the porbeagle. Mako sharks are capable of swimming at speeds up to {{convert|60|km/h|mph|abbr=on}}, and jumping up to {{convert|7|m|ft|abbr=on}} 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] Unique among members of the Lamniformes order, Mako sharks occasionally exhibit homosexual behavior outside of their usual mating season.[4] SpeciesThe genus contains these species:[2] {{div col|colwidth=30em}}
See also
References1. ^{{cite journal |last=Sepkoski |first=Jack |title=A compendium of fossil marine animal genera (Chondrichthyes entry) |journal=Bulletins of American Paleontology |volume=364 |page=560 |date=2002 |url=http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=575&rank=class |accessdate= |deadurl=yes |archiveurl=https://web.archive.org/web/20110930154826/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=575&rank=class |archivedate=2011-09-30 |df= }} {{Lamniformes}}{{Taxonbar|from=Q171298}}2. ^1 2 Fossilworks 3. ^{{cite journal|title=Origin of the white shark Carcharodon (Lamniformes: Lamnidae) based on recalibration of the Upper Neogene Pisco Formation of Peru|journal=Palaeontology|volume=55|issue=6|pages=1139–1153|doi=10.1111/j.1475-4983.2012.01201.x|year=2012|last1=Ehret|first1=Dana J.|last2=MacFadden|first2=Bruce J.|last3=Jones|first3=Douglas S.|last4=Devries|first4=Thomas J.|last5=Foster|first5=David A.|last6=Salas-Gismondi|first6=Rodolfo}} 4. ^{{cite book | last=Garrison | first=Tom | title=Oceanography : an invitation to marine science | publisher=Thomson Brooks/Cole | location=Belmont, CA | year=2007 | isbn=978-0-495-11286-0 | oclc=77765037}} 5. ^Smith, J.L.B. Sharks of the Genus Isurus Rafinesque, 1810. Ichthyological Bulletin; No. 6. Department of Ichthyology, Rhodes University, Grahamstown, South Africa 6. ^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}} 4 : Isurus|Extant Late Cretaceous first appearances|Taxa named by Constantine Samuel Rafinesque|Shark genera |
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