But a discovery made by a geology professor turned out to be a bigger deal than he could have imagined: what he stumbled upon were the oldest vertebrate fossil tracks ever found at Grand Canyon ...

Krill’s discovery turned out to be ancient fossilized footprints. The find was initially announced at the Society of Vertebrate Paleontology’s Annual Meeting in 2018 .

After extensive research, Rowland called the discovery "by far the oldest vertebrate tracks in Grand Canyon." "More significantly," he added, "they are among the oldest tracks on Earth of shelled ...

After a cliff collapsed in Grand Canyon National Park, a boulder with fossilized tracks was revealed, park officials said. The fossil footprints are about 313 million years old, according to ...

Rock falling from a cliff in Grand Canyon exposed 313 million-year-old fossilized footprints, the oldest ever found in the park. A hiker spotted them.

Early adaptation to eolian sand dunes by basal amniotes is documented in two Pennsylvanian Grand Canyon trackways. PLOS ONE , 2020; 15 (8): e0237636 DOI: 10.1371/journal.pone.0237636 Cite This Page : ...