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.
Skulls (A, C–E) or maxilla (B) of Camarasaurus sp. SMA 0002 (A) Dicraeosaurus hansemanni MB.R.2336 (B) Kaatedocus siberi SMA 0004 (C) Galeamopus sp. SMA 0011 (D) and Diplodocus sp. CM 11161 (E) in anterolateral view, illustrating the states of the characters 6, 9, 10, 11, 12, 16, 17, 48. Not to scale.
