147k views
0 votes
Anchiornis huxleyi lived long after the first known bird (Archeopteryx), but A. huxleyi's feathers are so colorful that it is widely accepted that A. huxleyi is the ancestor of the peacock.

a.true
b.false

1 Answer

4 votes

Final answer:

The claim that Anchiornis huxleyi is the ancestor of peacocks is false. Both Anchiornis and Archaeopteryx are transitional species but not direct ancestors of modern birds. Modern birds evolved from maniraptoran theropod dinosaurs and fall into three major clades including Paleognathae, Galloanserae, and Neoaves.

Step-by-step explanation:

The statement that Anchiornis huxleyi is widely accepted as the ancestor of the peacock is false. Anchiornis huxleyi lived during the late Jurassic period around 150 million years ago, like Archaeopteryx, but is not a direct ancestor of modern birds such as the peacock. Instead, both Anchiornis and Archaeopteryx are considered transitional species showcasing both dinosaurian and avian features. The modern birds (Neornithes) and their most recent common maniraptoran ancestor form the avian crown group. The colorful feathers of Anchiornis do not imply ancestry to peacocks but may indicate that such feather structures were present in many dinosaurian species.

The evolution of birds is a complex process, and while Archaeopteryx is a famous transitional fossil, birds are believed to have evolved from maniraptoran theropod dinosaurs. This group also gave rise to birds during the Mesozoic era. Modern birds are classified into three major clades: Paleognathae, Galloanserae, and Neoaves. The peacock falls within the Galloanserae, which is different from the lineage of Anchiornis huxleyi.

The statement that Anchiornis huxleyi is the ancestor of the peacock is false. While A. huxleyi lived after Archaeopteryx, which is considered one of the earliest known bird species, it is not widely accepted as the ancestor of the peacock. The peacock, scientifically known as Pavo cristatus, belongs to the family Phasianidae, which is a different group of birds from A. huxleyi.

User Bery
by
7.9k points