Consider Fig. 22.21 "Dinosaurs and Birds." From this phylogeny, which of the following is the BEST example of a monophyletic group?
The Ornithischian dinosaurs and their most recent common ancestor, and the Eoraptors.
All the branches on the tree EXCEPT the crocodiles and living birds.
Archaeopteryx, Living Birds, and their most recent common ancestor that lived between 160-170 Million Years Ago.
Allosaurids and Coelophysoids and their most recent common ancestor that lived about 230 Million Years Ago.
Living birds, Archaeopteryx, and Dromaeosaurids.