1. Archaeopteryx's external nostril is located at the front of the skull. This is very important. According to the anatomical comparison, it can be clearly known that Archaeopteryx may have a thick upper lip, but it has not yet formed a long nose unique to the long nose subclass. Judging from this, the more primitive initial image and phosphorus ash image also have no long nose.
2. Archaeopteryx's nostrils are connected with lips, forming a dexterous muscle organ that can search for food. This is actually the prototype of the elephant trunk, so it can be concluded that these gentle herbivores are close relatives of ancient elephants.