Portal:Paleontology/On this day/July 23

July 23:

 * 1834 - The HMS Beagle, carrying Charles Darwin on its second voyage, arrived at Valparaiso, Chile.
 * 1836 - The HMS Beagle, carrying Charles Darwin on its second voyage, departed Ascension Island for Bahia, Brazil.

A ‘Terror of Tyrannosaurs’: The First Trackways of Tyrannosaurids and Evidence of Gregariousness and Pathology in Tyrannosauridae

Richard T. McCrea, Lisa G. Buckley, James O. Farlow, Martin G. Lockley, Philip J. Currie, Neffra A. Matthews, S. George Pemberton

published 23 Jul 2014