zǔ / niǎo / lèi / bèi / rèn / wéi / shì / niǎo / lèi / yǎn / huà / guò / chéng / zhōng / de / zhòng / yào / yī / zhī祖鸟类被认为是鸟类演化过程中的重要一支。Archaeopterygian dinosaurs are considered an important branch in the evolution of birds.