Kuehneosaurus latus (Robinson 1962) Late Triassic, ~210 mya, 72 cm in length, was larger than its sister, Icarosaurus, and derived from a sister to Coelurosauravus.
Distinct from the more derived Icarosaurus, Kuehneosaurus had a relatively smaller skull, longer cervical series and longer tail, all as in Coelurosauravus.
Posterior ribs carried pseudoribs, as in Coelurosauravus, unlike Icarosaurus. Note: no kuehneosaurs had elongated transverse processes. Those were ribs fused to the centra. Pseudoribs, derived from dermal ossicles, framed the gliding membranes.
The feet were much larger than the hands. The limbs were long and gracile. Pedal digits III and IV were particularly elongate.