The Gonorynchiformes are an order of ray-finned fish that includes the important food source, the milkfish (Chanos chanos, family Chanidae), and a number of lesser-known types, both marine and freshwater.
The alternate spelling "Gonorhynchiformes", with an "h", is frequently seen but not official.
Gonorynchiformes have small mouths and no teeth. They are the sole group in the clade Anotophysi, a subgroup of the superorder Ostariophysi. They are characterized by a primitive Weberian apparatus formed by the first three vertebrae and one or more cephalic ribs within the head. This apparatus is believed to be a hearing organ, and is found in a more advanced and complex form in the related cypriniform fish, such as carp.[1] Also like the cypriniforms, the gonorynchiforms produce a substance from their skin when injured that dissolves into the water and acts an alarm signal to other fish.[2]
Although many of the families are rather small, there are several fossil genera. This listing of the groups of Gonorynchiformes includes fossil fish with a short description.[1] They are listed in approximate order of how primitive their characteristics are.
Period = from:-145.5 till:15TimeAxis = orientation:horizontalScaleMajor = unit:year increment:10 start:-145.5ScaleMinor = unit:year increment:1 start:-145.5TimeAxis = orientation:horAlignBars = justify
Colors = #legends id:CAR value:claret id:ANK value:rgb(0.4,0.3,0.196) id:HER value:teal id:HAD value:green id:OMN value:blue id:black value:black id:white value:white id:cretaceous value:rgb(0.5,0.78,0.31) id:earlycretaceous value:rgb(0.63,0.78,0.65) id:latecretaceous value:rgb(0.74,0.82,0.37) id:cenozoic value:rgb(0.54,0.54,0.258) id:paleogene value:rgb(0.99,0.6,0.32) id:paleocene value:rgb(0.99,0.65,0.37) id:eocene value:rgb(0.99,0.71,0.42) id:oligocene value:rgb(0.99,0.75,0.48) id:neogene value:rgb(0.999999,0.9,0.1) id:miocene value:rgb(0.999999,0.999999,0) id:pliocene value:rgb(0.97,0.98,0.68) id:quaternary value:rgb(0.98,0.98,0.5) id:pleistocene value:rgb(0.999999,0.95,0.68) id:holocene value:rgb(0.999,0.95,0.88)
BarData= bar:eratop bar:space bar:periodtop bar:space bar:NAM1 bar:NAM2 bar:NAM3 bar:NAM4 bar:NAM5 bar:NAM6 bar:NAM7 bar:NAM8 bar:NAM9 bar:NAM10 bar:NAM11 bar:NAM12 bar:NAM13 bar:NAM14 bar:NAM15 bar:NAM16 bar:NAM17
bar:space bar:period bar:space bar:era
PlotData= align:center textcolor:black fontsize:M mark:(line,black) width:25 shift:(7,-4)
bar:periodtop from: -145.5 till: -99.6 color:earlycretaceous text:Early from: -99.6 till: -65.5 color:latecretaceous text:Late from: -65.5 till: -55.8 color:paleocene text:Paleo. from: -55.8 till: -33.9 color:eocene text:Eo. from: -33.9 till: -23.03 color:oligocene text:Oligo. from: -23.03 till: -5.332 color:miocene text:Mio. from: -5.332 till: -2.588 color:pliocene text:Pl. from: -2.588 till: -0.0117 color:pleistocene text:Pl. from: -0.0117 till: 0 color:holocene text:H.
bar:eratop from: -145.5 till: -65.5 color:cretaceous text:Cretaceous from: -65.5 till: -23.03 color:paleogene text:Paleogene from: -23.03 till: -2.588 color:neogene text:Neogene from: -2.588 till: 0 color:quaternary text:Q.
PlotData= align:left fontsize:M mark:(line,white) width:5 anchor:till align:left
color:earlycretaceous bar:NAM1 from: -145.5 till: -140.2 text: Aethalionopsis color:earlycretaceous bar:NAM2 from: -140.2 till: -130 text: Rubiesichthys color:earlycretaceous bar:NAM3 from: -125 till: -112 text: Chanopsis color:earlycretaceous bar:NAM4 from: -125 till: -112 text: Dastilbe color:earlycretaceous bar:NAM5 from: -125 till: -112 text: Tharrhias color:earlycretaceous bar:NAM6 from: -125 till: -93.5 text: Caeus color:latecretaceous bar:NAM7 from: -99.6 till: -97.6 text: Charitopsis color:latecretaceous bar:NAM8 from: -99.6 till: -97.6 text: Judeichthys color:latecretaceous bar:NAM9 from: -99.6 till: -97.6 text: Ramallichthys color:latecretaceous bar:NAM10 from: -99.6 till: -93.5 text: Lusitanichthys color:latecretaceous bar:NAM11 from: -99.6 till: -93.5 text: Salminops color:latecretaceous bar:NAM12 from: -95.5 till: -83.5 text: Charitosomus color:eocene bar:NAM13 from: -55.8 till: -48.6 text: Halecopsis color:eocene bar:NAM14 from: -55.8 till: -33.9 text: Coelogaster color:eocene bar:NAM15 from: -55.8 till: -23.03 text: Notogoneus color:eocene bar:NAM16 from: -55.8 till: 0 text: Chanos color:oligocene bar:NAM17 from: -33.9 till: -28.4 text: Neohalecopsis
PlotData= align:center textcolor:black fontsize:M mark:(line,black) width:25
bar:period from: -145.5 till: -99.6 color:earlycretaceous text:Early from: -99.6 till: -65.5 color:latecretaceous text:Late from: -65.5 till: -55.8 color:paleocene text:Paleo. from: -55.8 till: -33.9 color:eocene text:Eo. from: -33.9 till: -23.03 color:oligocene text:Oligo. from: -23.03 till: -5.332 color:miocene text:Mio. from: -5.332 till: -2.588 color:pliocene text:Pl. from: -2.588 till: -0.0117 color:pleistocene text:Pl. from: -0.0117 till: 0 color:holocene text:H.
bar:era from: -145.5 till: -65.5 color:cretaceous text:Cretaceous from: -65.5 till: -23.03 color:paleogene text:Paleogene from: -23.03 till: -2.588 color:neogene text:Neogene from: -2.588 till: 0 color:quaternary text:Q.