Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Phylomorphospaces depicting (a) the Mesozoic theropod tree in fore- (N = 92) and (b) hindlimb (N = 107) shape spaces defined by PC2 and PC3 (table 1). Non-maniraptoran lineages are shown in black, non-avialan maniraptorans in dark grey (red) and Avialae in light grey (blue). Silhouettes are illustrative. (Online version in colour.)
