"Fossils provide the critical age data we need to unlock the timing of major evolutionary events," says Dr. Ksepka. "This new resource will provide the crucial fossil data needed to calibrate 'molecular clocks' which can reveal the ages of plant and animal groups that lack good fossil records. When did groups like songbirds, flowering plants, or sea turtles evolve? What natural events were occurring that may have had an impact? Precisely tuning the molecular clock with fossils is the best way we have to tell evolutionary time."

More than twenty paleontologists, molecular biologists, and computer programmers from five different countries contributed to the design and implementation of this new database. The Fossil Calibrations Database webpage launches on Tuesday February 24th, and a series of five peer-reviewed papers and an editorial on the topic will appear in the scientific journalPalaeontologia Electronica, describing the endeavor. Dr. Ksepka is the author of one of the papers and co-author of the editorial.

"This exciting field of study, known as 'divergence dating,' is important for understanding the origin and evolution of biodiversity, but has been hindered by the improper use of data from the fossil record," says Dr. Parham. "The Fossil Calibration Database addresses this issue by providing molecular biologists with paleontologist-approved data for organisms across the Tree of Life."

The Tree of Life? "Think of it as a family tree of all species," explains Dr. Ksepka.

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The above story is based on materials provided by Bruce Museum. Note: Materials may be edited for content and length.