The Terrible, Prehistoric Frog That Wasn’t

Over 300 million years ago, long before the time of the dinosaurs, giant amphibians hopped along the sandy shores of Pennsylvania. At least, that was what Pittsburgh Post-Gazette reporter James Ross explained to readers of the newspaper’s November 28th, 1948 issue.

The inspiration for the report was a set of strange tracks found in the Elk County woods not far from Pittsburgh. Bizarre scratches in stone had been discovered a week and a half before by Mike Kosinski, brother to preparator James Kosinski at the Carnegie Museum of Natural History, and it was by that route that J. LeRoy Kay – a paleontology curator at the institution – found out about the weird traces.

Exactly what sort of creature created the tracks

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