By the nonfiction author Jonathan David Whitcomb

Since 2013, I have spent over 10,000 hours in my investigation of eyewitness sightings of apparent extant pterosaurs. Early in 2017, the scientist Clifford Paiva and I made a joint declaration regarding the authenticity of the “Pteranodon photo” that is now called “Ptp.” For more information about me, see About Whitcomb.

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