Although they came into their own only after the extinction of the dinosaurs some 65 million years ago, mammals had maintained a low-profile existence for some 150 million years before that. New ...

THIS work forms a companion volume to the same author?s monograph on the European Mesozoic mammals which was published in 1928 as a catalogue by the Trustees of the British Museum. In the present ...

The Changing Globe -- The Changing Face of the Earth -- Vendian Times -- Early Cambrian Times -- Late Cambrian Times -- Ordovician Times -- Silurian Times -- Devonian Times -- Carboniferous Times -- ...

New Pliocene bat records from the Meade Basin of southwestern Kansas increase our knowledge of chiropterans from the late Neogene of the central Great Plains. Examination of previously collected, ...

Fossil seal remains from Richmond, Virginia, first reported by Wyman in 1850, and named Phoca wymani by Leidy in 1853, have been neglected and unjustifiably regarded as cetacean by most subsequent ...

IN the matter of bulk this edition shows a marked increase over the first edition (1903); while, in most cases, at any rate, it appears to have been brought fairly well up to date. The ancestral ...