Some notes on the diverse brachiosaurid sauropods of the Late Jurassic of North America, Europe and Africa

<p>The unusual placement of the parapophyses on elongotated peduncles further distinguishes <em>Brachiosaurus </em>from other brachiosaurid genera including <em>Giraffatitan</em>. Late Jurassic brachiosaurid taxonomy is probably more complex than has been realized, in part because of evolution over the considerable periods of times recorded in the Morrison and Tendaguru formations. The presence of reduced tails on late Jurassic brachiosaurids is confirmed.