What is Isurus?
{{italictitle}} {{automatic taxobox | fossil_range = {{fossil range|99.7|0|[[Cretaceous]] - recent}}<ref>{{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 |url-status=dead |archiveurl=https://web.archive.org/web/20110930154826/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=575&rank=class |archivedate=2011-09-30 }}</ref> | 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 = [[Constantine Samuel Rafinesque|Rafinesque]], 1810 | type_species = [[Shortfin mako shark|''Isurus oxyrinchus'']] | type_species_authority = Rafinesque, 1810 | synonyms = *''Isuropsis'' <small>Gill, 1862</small> *''Lamiostoma'' <small>Glikman, 1964</small> *''Oxyrhina'' <small>Agassiz, 1838</small> *''Oxyrrhina'' <small>Bonaparte, 1846</small> *''Plectrostoma'' <small>Gistel, 1848</small>}} '''''Isurus''''', commonly known as the '''mako sharks''', is a [[genus]] of fast-swimming sharks in the family [[Lamnidae]]. They are in fact the fastest-swimming shark.<ref>''Shark'': BBC tv, first instalment. [https://www.bbc.co.uk/programmes/p02n7s0d]</ref> This is in the same [[family (biology)|family]] as the [[great white shark]]. ''Isurus'' ranges in length from {{convert|2.5|to|4.5|m|ft|0}}, and can grow to about {{convert|800|kg|-1}}. The genus has a long fossil history.<ref>{{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 = 2008-01-09| archive-date = 2012-05-10| archive-url = https