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October 21, 2020, 3:59 am UTC    
August 21, 2020 08:56AM
Discovered fossil tracks determined to be
oldest known in Grand Canyon National Park
ABC, Channel 15 News, Arizona

The open access paper is:

Rowland, S.M., Caputo, M.V., and Jensen, Z.A.,
2020. Early adaptation to eolian sand dunes by
basal amniotes is documented in two Pennsylvanian
Grand Canyon trackways. PLoS ONE 15(8): e0237636.

A related paper is:

Francischini, H., Lucas, S.G., Voigt, S., Marchetti,
L., Santucci, V.L., Knight, C.L., Wood, J.R.,
Dentzien-Dias, P. and Schultz, C.L., 2020. On the
presence of Ichniotherium in the Coconino
Sandstone (Cisuralian) of the Grand Canyon and
remarks on the occupation of deserts by
non-amniote tetrapods. PalZ, 94(1), pp.207-225.


Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)
Subject Author Posted

Amniote tetrapods documented in two Pennsylvanian Grand Canyon trackways

Paul H. August 21, 2020 08:56AM

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