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Binomial Name. Archaeopteryx lithographica. Archaeopteryx is an extinct bird that evolutionists argue possesses some reptilian-like features causing it to be classified as a evolutionary transitional form, and is considered the first of the so called feathered dinosaurs.inomial Name. Archaeopteryx lithographica. Archaeopteryx is an extinct bird that evolutionists argue possesses some reptilian-like features causing it to be classified as a evolutionary transitional form, and is considered the first of the so called feathered dinosaurs.
But crocodilians have some features which are normally associated with a warm-blooded metabolism because they improve the animal's oxygen supply: 1  4-chambered hearts. 2  a secondary palate, which allows the animal to eat and breathe at the same time. 3  a hepatic piston mechanism for pumping the lungs. The hip sockets faced sideways but the knobs on the femurs were at right angles to the rest of the femur, which therefore pointed downwards. 2  Dinosaurs evolved from archosaurs with this hip arrangement. 3  The hip sockets faced downwards and the knobs on the femurs were in line with the femur.