3-D radar imaging unlocks the untapped behavioral and biomechanical archive of Pleistocene ghost tracks.

Abstract:

:Footprint evidence of human-megafauna interactions remains extremely rare in the archaeological and palaeontological records. Recent work suggests ancient playa environments may hold such evidence, though the prints may not be visible. These so-called "ghost tracks" comprise a rich archive of biomechanical and behavioral data that remains mostly unexplored. Here we present evidence for the successful detection and 3-D imaging of such footprints via ground-penetrating radar (GPR), including co-associated mammoth and human prints. Using GPR we have found that track density and faunal diversity may be much greater than realized by the unaided human eye. Our data further suggests that detectable subsurface consolidation below mammoth tracks correlates with typical plantar pressure patterns from extant elephants. This opens future potential for more sophisticated biomechanical studies on the footprints of other extinct land vertebrates. Our approach allows rapid detection and documentation of footprints while enhancing the data available from these fossil archives.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Urban TM,Bennett MR,Bustos D,Manning SW,Reynolds SC,Belvedere M,Odess D,Santucci VL

doi

10.1038/s41598-019-52996-8

subject

Has Abstract

pub_date

2019-11-11 00:00:00

pages

16470

issue

1

issn

2045-2322

pii

10.1038/s41598-019-52996-8

journal_volume

9

pub_type

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