The Geological Society of London

CONTENTS. Introduction. Generic distinctions and nomenclature of the Prohoscidea. Dinotherium. Mastodon and Elephas. The distinctive and specific characters of Mastodon and Elephas. The British fossil Mastodon, and its comparison with M. angustideas, M. ~4rvernen~, and M. longiroslris. Mastodon angustidens. M. .4rvernensis and M. longirostris. British specimens of Mastodon. Molars. Premolars. Milk-molars. Lower jaw. Geological age of the Mastodons. Mastodon angustideus, M. longirostris, and M. [lrvernensis. Mastodon of the Crag, in particular. Conclusion.

[1]  D. Sharpe On the Age of the Fossiliferous Sands and Gravels of Farringdon and its Neighbourhood , 1854, Quarterly Journal of the Geological Society of London.