Fossilized footprints reveal prehistoric elephant nursery

Fossilized footprints reveal prehistoric elephant nursery
Whole-digit preservation footprint of an elephant calf at Matalacañas Trampled Surface, SW Spain. They are evidence of the straight-tusked elephant, the last proboscidean roaming by the southernmost Europe mainland. Credit: Neto de Carvalho et al.

Fossilized footprint tracks from the Matalascañas Trampled Surface in Huelva, south west Spain suggest that the area was used by straight-tusked elephants (Palaeoloxodon antiquus) to raise newborn offspring during the Late Pleistocene (129,000 to 11,700 years ago), according to a study published in Scientific Reports.

Carlos Neto de Carvalho and colleagues analyzed 34 sets of footprint tracks. Based on the rounded-elliptical shape of the prints and other criteria, the authors attributed the tracks to straight-tusked elephants, which are closely related to African forest elephants alive today. To determine the age of individual elephants, the authors calculated shoulder height and based on footprint length.

The authors identified footprints of 14 calves, which they estimate as having been between newborns and two years of age. Their body mass was estimated to have been between 70 and 200kg. The authors also categorized tracks from eight juveniles (two to seven years old) and six adolescents (eight to 15 years old). The high frequency of young elephants may indicate that the area, which once had an interdune pond, was a reproductive site for elephant herds, with the surrounding vegetation providing a for young elephants unable to travel long distances to other food sources.

The authors also identified adult tracks possibly made by three (over 15 years) based on the tracks' to those of young calf footprints. Only two tracks were identified as having been made by males, with much larger footprints (over 50cm in length) and estimated body masses of over seven tonnes.

Fossilized footprints reveal prehistoric elephant nursery
The first hominin trackway attributed to a Neanderthal adult found in the Matalascañas Trampled Surface. The area was targeted for potential game (see the large well-preserved deer track in the bottom of the photo) and newborn elephants known to be part of the Neanderthal menu. Credit: Neto de Carvalho et al.

The authors conclude that the Matalascañas Trampled Surface in Huelva was likely a rich reproductive habitat for female elephants to raise their young and was visited rarely by male individuals.


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More information: Carlos Neto de Carvalho et al, First tracks of newborn straight-tusked elephants (Palaeoloxodon antiquus), Scientific Reports (2021). DOI: 10.1038/s41598-021-96754-1 , www.nature.com/articles/s41598-021-96754-1
Journal information: Scientific Reports

Citation: Fossilized footprints reveal prehistoric elephant nursery (2021, September 16) retrieved 15 October 2021 from https://phys.org/news/2021-09-fossilized-footprints-reveal-prehistoric-elephant.html
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