While a trip to the Hartman Prehistoric Garden can be an end in itself, one of the most valuable purposes of any botanical garden, zoo, arboretum, or museum is the curiosity it elicits from visitors. We have tried to give some in-depth information about the plants and animals here on this website, but there are many directions in which one can explore to further their knowledge. As an aid towards this goal, the sites within this list should act as a sort of virtual reference library. One of the best ways to quickly find pages related to a particular subject is through using a Google search, but not all information on the web is of equal quality. By presenting authoritative sites that provide well-researched documentation, we hope that the quest for facts and insights can be made a bit more efficient and enjoyable.
- The Cycad Pages - A botanical database with a page for every known cycad species, as well as just about everything else you could possibly want to know about these ancient plants.
- Palm & Cycad Societies of Florida, Inc. - Includes the Virtual Palm Encyclopedia and Virtual Cycad Encyclopedia, as well as a glossary and pronunciation guide to palm and cycad Latin names.
- The Cycad Society - An organization that is "dedicated to the Conservation of Cycads through Education & Scientific Research."
- Native Plant Information Network - Sponsored by the Lady Bird Johnson Wildflower Center, this site includes a Native Plants Database, Image Gallery, and other resources.
- Vascular Plant Image Library - Hosted by Texas A & M University, and part of the Digital Flora of Texas project, this is a large, searchable database which is useful for identification purposes.
- OdonataCentral - Information on the distribution, biogeography and biodiversity of dragonflies & damselflies in North America, with special emphasis on Texas.
- Texas Entomology - Useful links and information compiled by Mike Quinn, Invertebrate Biologist with the Wildlife Diversity Program of Texas Parks & Wildlife.
- Moths of North America - A searchable database with images, presented by the U.S. Geological Survey Northern Prairie Wildlife Research Center.
- Butterflies of North America - Same as above, but for butterflies.
- BugGuide.Net - An ever growing collection of insect, spider, and other arthropod images, very useful for identification purposes.
- The TIARA Biodiversity Project - A collaborative, on-line, biological information system for the insects and terrestrial arthropods of the south-central United States and adjacent Mexico.
Dinosaurs and Other Prehistoric Life
Evolution, Phylogeny, and Biodiversity
- Phylogeny of Life - A section of the University of California, Berkeley, Museum of Paleontology site with extensive information.
- Evolution - Same as above but all about the development of life on Earth.
Friends of the Hartman Prehistoric Garden
- The Great Outdoors - A great nursery in the Austin Area that carries a number of the plants found in the HPG. They have been very generous with donations to the HPG and deserve your support!
- YuccaDo Nursery - An online nursery that has helped us out with donations and unusual plants. A great place for a virtual visit.
- Madrone Nursery - One of the absolute best places for native Texas plants (both ancient and modern), located in San Marcos, Texas. Their invaluable advice and generous plant donations have helped make the HPG what it is today.
- The Cycad Jungle - This is a great online cycad nursery with lots of good cycad cultivation information, and another generous supporter of the HPG.
- larvalbug - A diverse set of pages (created by the webmaster of this site) covering a wide range of subjects: Texas gardening and animals, value investing, canine humor, free photographs and clipart, stories, and art.