Impressions from a Lost World: The Discovery of Dinosaur Footprints

Fossil Tridentipes

zoomable artifact image here

Hitchcock originally thought this trackmaker had three toes, so gave the name Tridentipes (tri, three, pes, toe), but later, by prying the layers of a specimen apart, as he did when he made "track books," he discovered the impression of a fourth toe in underlying layers. 

Date:
Accession #:
52/10
Courtesy of:
Beneski Museum of Natural History at Amherst College, photograph by Penny Leveritt