COMMENTS: The eyes and nostrils of Brachiosaurus were set
high up on the dome on its head, and the skull had many holes to lighten its weight.
The airways in the skull have suggested to some that it may have had a trunk, but
this theory is not widely supported. Like most sauropods it probably travelled in
herds.
SPECIES LIST: B. altithoraxRiggs, 1903
(type)
. B. atalaiensis deLapparent and Zbyszewski, 1957. B. brancai Janensch, 1914, including B.fraasi Janensch, 1914 (proposed
as new
genus
Giraffititan). B. nougaredi de Lapparent, 1960. Some consider this anomen dubium.