Does anyone know of a fossil calibration that I can use to estimate the relative rates of evolution among fleas?

Luther van der Mescht @Luther_Van_der_Mescht

06 June 2014 1 3K Report

I would like to estimate the relative evolutionary rates among fleas using the program BEAST. I have searched the literature for the oldest known flea fossils but I can't seem to find any. I would like to use this to calibrate my BEAST analysis.

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