How many birds have:
Premaxilla and maxilla are not horn-covered.
Trunk region vertebra are free.
Bones are pneumatic.
Pubic shafts with a plate-like, and slightly angled transverse cross-section
Cerebral hemispheres elongate, slender and cerebellum is situated behind the mid-brain and doesn't overlap it from behind or press down on it.
Neck attaches to skull from the rear as in dinosaurs not from below as in modern birds.
How many reptiles have:
Feathers
Opposable hallux (big toe).
Furcula (wishbone) formed of two clavicles fused together in the midline.
Pubis elongate and directed backward
Answer: NoneAll About Archaeopteryx