- Exotic and Invasive Species Dalmation toadflax (Linaria dalmatica). Photo courtesy of Chris Luginbuhl Invasive plant and animal speciesalso referred to as exotics, non-natives, introduced, or nonindigenous speciesare organisms which have expanded beyond their native range or have been introduced from other parts of the world. Some species were introduced into the wild intentionally, while others ...www.cpluhna.nau.edu/Biota/invasive_exotics.htm
- An Introduction and Virtual Geologic Field Trip to the Permian Reef Complex, Guadalupe and Delaware Mountains, New Mexico-West Texas This site offers a virtual field trip to the classic Permian reef complex and other geologic features of the Guadalupe Mountains. It contains an introduction plus several roadlogs with diagrams, photographs, and movies, as well as an extensive bibliography in order ...geoinfo.nmt.edu/staff/scholle/guadalupe.html
- www.sgha.net