The History of the Pelycosauria, with a Description of the Genus Dimetrodon, Cope
Published in Transactions of the American Philosophical Society, in 1899, in volume 20, issue 1, pages 5-62
Date published:1899
Published in Transactions of the American Philosophical Society, in 1899, in volume 20, issue 1, pages 5-62
Date published:1899