Unspecified / 1972
The age of mammals
The Smithsonian catalogs The age of mammals as books in its Mammals, Fossil records.
Fossils and the origin of mammals -- The Paleocene -- The Eocene -- The Oligocene -- The Miocene -- The Pliocene -- Australia -- South America -- The Pleistocene ice age -- The age of man -- Taxonomic list of cenozoic tetrapods
A CLOSER LOOK
The Smithsonian lists the object under Mammals, Fossil and dates it 1972.
Fossils and the origin of mammals -- The Paleocene -- The Eocene -- The Oligocene -- The Miocene -- The Pliocene -- Australia -- South America -- The Pleistocene ice age -- The age of man -- Taxonomic list of cenozoic tetrapods
FOLLOW THE EVIDENCE
Smithsonian InstitutionThe age of mammalsOriginal explanation based on the sources above. Images carry their own reuse terms.