Editing Paddlefish (section)

==Classification==
[[File:Protopsephurus.png|thumb|270px|Restoration of the [[Cretaceous]] {{extinct}}''[[Protopsephurus]]'']]
[[File:Crossopholis.png|thumb|270px|Restoration of {{extinct}}''[[Crossopholis]]'']]
There is one currently [[extant taxon|extant]] genus in this family, one recently [[extinct]] and five extinct genera known exclusively from [[fossil]]s.

Classification following {{harvp|Grande|Bemis|1991}},<ref name=Grande1991/> with ''[[Parapsephurus]]'' and ''[[Pugiopsephurus]]'' added in {{harvp|Hilton|During|Grande|Ahlberg|2023}}:<ref name=Hilton2023/>
* genus {{extinct}} ''[[Protopsephurus]]'' <small>Lu, 1994</small> (Early Cretaceous, China)
** species {{extinct}} ''Protopsephurus liui'' <small>Lu, 1994</small>
* genus {{extinct}} ''[[Pugiopsephurus]]'' <small>Hilton ''et al.'', 2023<ref name=Hilton2023/></small> (Late Cretaceous, North America) (''[[Incertae sedis]]'')
** species {{extinct}} ''Pugiopsephurus inundatus'' <small>Hilton ''et al.'', 2023<ref name=Hilton2023/></small>
* clade Polyodonti
** genus {{extinct}} ''[[Paleopsephurus]]'' <small>MacAlpin, 1947</small> (Late Cretaceous, North America)
*** species {{extinct}} ''Paleopsephurus wilsoni'' <small>MacAlpin, 1947</small>
** genus {{extinct}}''[[Parapsephurus]]'' <small>Hilton ''et al.'', 2023<ref name=Hilton2023/></small> (Late Cretaceous, North America)
*** species {{extinct}} ''Parapsephurus willybemisi'' <small>Hilton ''et al.'', 2023<ref name=Hilton2023/></small>
** subfamily Polyodontinae
*** genus {{extinct}} ''[[Psephurus]]'' <small>[[Albert Günther|Günther]], 1873</small>
**** {{extinct}}''Psephurus gladius'' <small>[[Eduard von Martens|E. von Martens]], 1862</small> [[Chinese paddlefish]] (extinct c. 2003)
*** tribe Polyodontini
**** genus {{extinct}} ''[[Crossopholis]]'' <small>[[Edward Drinker Cope|Cope]]'','' 1883</small> ([[Paleogene]], North America)
***** species {{extinct}} ''Crossopholis magnicaudatus'' <small>Cope, 1883</small>
**** genus ''[[Polyodon]]'' <small>[[Bernard Germain de Lacépède|Lacépède]], 1797</small> ([[Paleocene]]-Recent, North America)
***** ''[[Polyodon spathula]]'' <small>[[Johann Julius Walbaum|Walbaum]], 1792</small> [[American paddlefish]]
***** {{extinct}} ''{{ill|Polyodon tuberculata|qid=Q25432127}}'' <small>Grande & Bemis, 1991</small>


Relationships of the genera are from {{harvp|Grande|Jin|Yabumoto|Bemis|2002}}.<ref>{{cite journal |last1=Grande |first1=Lance |last2=Jin |first2=Fan |last3=Yabumoto |first3=Yoshitaka |last4=Bemis |first4=William E. |date=2002-07-08 |title=''Protopsephurus liui'', a well-preserved primitive paddlefish (Acipenseriformes: Polyodontidae) from the lower Cretaceous of China |journal=Journal of Vertebrate Paleontology |volume=22 |issue=2 |pages=209–237 |doi=10.1671/0272-4634(2002)022[0209:plawpp]2.0.co;2 |s2cid=86258128 |issn=0272-4634 }}</ref>{{clade
 |style=font-size:100%;line-height:80%
 |label1=Polyodontidae
 |1={{clade
   |1={{clade
      |1={{extinct}} ''[[Protopsephurus]]''
       }}      
    |2={{clade
     |label1=
      |1={{clade
        |1={{extinct}} ''[[Paleopsephurus]]''
         }}
       |label2=Polyodontinae
       |2={{clade
         |1={{extinct}} ''[[Psephurus]]''
         |2={{clade
          |1={{extinct}} ''[[Crossopholis]]''
          |2=''[[Polyodon]]''
          }}
        }}
      }}
    }}
 }}