Temporal range: Middle or Late Triassic
|A restoration of Longisquama insignis|
| †Longisquama insignis|
Longisquama is an Avicephalan from early Triassic Kyrgyzstan. Scientists today believe that Longisquama is not directly linked to the evolution of birds even though it has protofeathers on its back.
Longisquama insignis is an extinct lizard-like reptile with feather-like structures extending from their backs, though different specimens have been found with different amounts of these appendages.