The DarwinCore Paleontology Extension (DarwinCoPE) is an effort to create a standard representation for the specialized geologic time and lithology data needed to search fossil collections. Developed at the Illinois State Museum, DarwinCoPE has been proposed to the Taxonomic Database Working Group (TDWG) as a draft extension to DarwinCore 2, the next-generation standard for exchange of biodiversity data. Whirl-i-Gig implemented a test-bed for the Extension, a prerequisite for TDWG acceptance. The test-bed includes a descriptive web site with documentation, a DiGIR-based multi-collection search interface (a modified version of the PaleoPortal interface) and three DarwinCoPE-compliant DiGIR data providers located in Illinois, Oklahoma and California. The test-bed has proven that DarwinCoPE can function effectively with real-world paleontology data.