Evolution, phylogeny, and classification of the Mastodontoidea

Research Article| September 01, 1921 Evolution, phylogeny, and classification of the Mastodontoidea HENRY FAIRFIELD OSBORN HENRY FAIRFIELD OSBORN Search for other works by this author on: GSW Google Scholar Author and Article Information HENRY FAIRFIELD OSBORN Publisher: Geological Society of America Received: 10 May 1921 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 1921 Geological Society of America GSA Bulletin (1921) 32 (3): 327–332. https://doi.org/10.1130/GSAB-32-327 Article history Received: 10 May 1921 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation HENRY FAIRFIELD OSBORN; Evolution, phylogeny, and classification of the Mastodontoidea. GSA Bulletin 1921;; 32 (3): 327–332. doi: https://doi.org/10.1130/GSAB-32-327 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract IntroductionIn previous papers reasons have been given for dividing the Proboscidea into four main superfamilies, as follows:I. Mœritherioidea, typified by Mœritherium, Oligocene, North Africa.II. Dinotherioidea, typified by Dinotherium, Miocene and Pliocene, Eurasia.III. Mastodontoidea, typified by the bunomastodonts and the mastodonts, Africa, Eurasia, North and South America.IV. Elephantoidea, typified by the stegodonts, loxodonts, elephants, and mammoths, Africa, Eurasia, North America.As clearly pointed out in the second paper on this subject (Osborn, 1921. 514, pages 2–5), these four superfamilies are clearly distinguished from each other by profound differences in the adaptations of the cutting teeth, namely, the first and second pairs of superior and inferior incisors characteristic of all Proboscidea. The author is not prepared at present to add to what has been said in previous papers regarding the mœritheres and dinotheres.SpeciesContinued observation of the types on which the species in all parts of . . . This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.