Testudines

devoted to fresh water turtles of South America

biology, identification key, biology, and conservation

online pdf document - Conservation Biology

Tree of Life

a database of turtle and tortoise literature references maintained by Chelonian Research Foundation (web archive site - 2007)

an international peer-reviewed scientific publication series for monograph-length manuscripts, collected proceedings of symposia, edited compilations, and other longer turtle-related research documents.

Cortland Herpetology Collection

an information repository supporting global turtle conservation - goal is to collect and provide current and historical data about turtle locations, and to help maintain the variety of turtles as part of the world's biodiversity (incl. distribution database)

a database of the location of every species of freshwater and land turtle that has been collected by a museum, private individual, or referenced in a publication

monthly bulletin of the California Turtle & Tortoise Club