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Nelson, J.S., 1994

Gonorynchiformes milkfish

Actinopterygii

Cypriniformes 150 M years

Carroll, R., 1988  |  Colbert, E. and M. Morales, 1991

late Jurassic

Marine

Fresh

Brackish

Orbitosphenoid absent; parietals small; quadrate condyle far forward; teeth absent on fifth ceratobranchial; first three vertebrae specialized and associated with one or more cephalic ribs; suprabranchial (=epibranchial) organ present (consisting of lateral pouches in the posterior part of the branchial chamber behind the fourth epibranchials); mouth small; jaws toothless; no postcleithra; 5-7 hypural plates.

Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335.

Greek, gonos = descent, origin + Greek, rhyngchos = snout, muzzle + Latin, forma = shape (Ref. 45335).

( n = 4 ) -
Chanidae Gonorynchidae Kneriidae Phractolaemidae

Ref.
[ e.g. 9948]                       

Glossary
                    [ e.g. cephalopods]