Fossils

Links With the Past in the Plant World

Snails

The Ultimate Rockhounding Handbook

Cambrian Ocean World

The Geologic Story of Palo Duro Canyon

British Museum (Natural History) General Guide

The Geology of D.A.R. State Park, Mt. Philo State Forest Park, Sand Bar State Park

The Geologic Story of Colorado National Monument

Fossil Forests of the Yellowstone National Park

Notes on Collecting and Preserving Natural-History Objects

African Dinosaurs Unearthed

Bernissart Dinosaurs and Early Cretaceous Terrestrial Ecosystems

The Desert Bones

Across Mongolian Plains

The Ornithosauria

A Short History of the Academy of Natural Sciences of Philadelphia

Underground Treasures: How and Where to Find Them

Pleistocene Bats from San Josecito Cave, Nuevo Leon, Mexico

Biology, The Myth Of Evolution