The Tertiary Research Group - A London-based, specialist Geological Society, which brings together amateur and professional geologists with an interest in the Tertiary period worldwideEocene Fossils - These specimens are adjunct to a larger collection (15,500 pieces of rock on which are contained perhaps as many as 65,000 individual specimens), donated to and housed at the USNM-Smithsonian Institution, Washington, D.C.
Institute of Arctic and Alpine Research - Quaternary paleoecology site from the University of Colorado, Boulder's Scott Elias
Quaternary Entomology Laboratory - A lab specializing in the analysis and application of Pleistocene and Holocene insect remains for paleoenvironmental analyses. Located in the Department of Geosciences, North Dakota State University
Quaternary Beetle (Coleoptera) Research - From the research group at the University of Waterloo
Pliocene - A short background.
The Cenozoic Era - An overview of the era from the UC Berkeley Museum of Paleontology.
The Age of Mammals - An overview of Cenozoic mammalian evolution.