Stratigraphy and Geologic Time
The International Commission on Stratigraphy; note especially the current (2009) time scale chart, the List of current GSSPs and GSSAs, and the Time Scale Creator
"Understanding Geologic Time", an online interactive introductory exercise from the Stratigraphy Exhibit of UCMP University of California Museum of Paleontology (UCMP)
Online text of Charles Lyell's Principles of Geology
William "Strata" Smith's "A Geological Map of England and Wales and Part of Scotland "
Paleogeography and Plate Tectonics
Global Paleogeography and Regional Paleogeography websites of paleogeographic reconstructions by Northern Arizona University geology professor Dr. Ron Blakely
Paleomap Project of University of Chicago geology professor Chris Scotese
Plate Tectonics online exhibit of UCMP
Evolution, Paleontology & Systematics
"Getting Into the Fossil Record", an introductory exercise about taphonomy from UCMP
Understanding Evolution, a website for K-12 teachers. It also works as a GREAT introduction/reveiw of the topic, its history, and related disciplines for college undergradutes (or graduates, or private citizens, or pretty much anyone else!)
"What Did T. rex Taste Like?", an interactive online exhibit on cladistics from UCMP
The Tree of Life Project, an online attempt to map out the phylogenetic relationships of all organisms living and extinct
UCMP Phylogeny Exhibit, a less technical equivalent of the Tree of Life Project
Darwin and Wallace's 1858 paper
The Origin of Species, online text
The Smithsonian Institution National Museum of Natural History Department of Paleobiology homepage, with exhibits
Excellent comprehensive site about Trilobites, the "poster children" for the Paleozoic!
An Introduction to Ichnology, the study of trace fossils