Early Marine Isotope Stage 5 sea levels, coastal dune palaeoenvironments, and human occupation on the southeast coast of South Africa

2020 ◽  
Vol 245 ◽  
pp. 106504
Author(s):  
Peter Morrissey ◽  
Jasper Knight ◽  
Dominic J. Stratford
2020 ◽  
Vol 116 (9/10) ◽  
Author(s):  
Charles W. Helm ◽  
Martin G. Lockley ◽  
Hayley C. Cawthra ◽  
Jan C. De Vynck ◽  
Mark G. Dixon ◽  
...  

Three new Pleistocene hominin tracksites have been identified on the Cape south coast of South Africa, one in the Garden Route National Park and two in the Goukamma Nature Reserve, probably dating to Marine Isotope Stage 5. As a result, southern Africa now boasts six hominin tracksites, which are collectively the oldest sites in the world that are attributed to Homo sapiens. The tracks were registered on dune surfaces, now preserved in aeolianites. Tracks of varying size were present at two sites, indicating the presence of more than one trackmaker, and raising the possibility of family groups. A total of 18 and 32 tracks were recorded at these two sites, respectively. Ammoglyphs were present at one site. Although track quality was not optimal, and large aeolianite surface exposures are rare in the region, these sites prove the capacity of coastal aeolianites to yield such discoveries, and they contribute to what remains a sparse global hominin track record. It is evident that hominin tracks are more common in southern Africa than was previously supposed.


2019 ◽  
Author(s):  
Kate M. Swanger ◽  
◽  
Kelsey Winsor ◽  
Esther Babcock ◽  
Rachel D. Valletta ◽  
...  

2021 ◽  
Vol 62 ◽  
pp. 101269
Author(s):  
Samuel Luke Nicholson ◽  
Rob Hosfield ◽  
Huw S. Groucutt ◽  
Alistair W.G. Pike ◽  
Dominik Fleitmann

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Katrina Nilsson-Kerr ◽  
Pallavi Anand ◽  
Philip B. Holden ◽  
Steven C. Clemens ◽  
Melanie J. Leng

AbstractMost of Earth’s rain falls in the tropics, often in highly seasonal monsoon rains, which are thought to be coupled to the inter-hemispheric migrations of the Inter-Tropical Convergence Zone in response to the seasonal cycle of insolation. Yet characterization of tropical rainfall behaviour in the geologic past is poor. Here we combine new and existing hydroclimate records from six large-scale tropical regions with fully independent model-based rainfall reconstructions across the last interval of sustained warmth and ensuing climate cooling between 130 to 70 thousand years ago (Marine Isotope Stage 5). Our data-model approach reveals large-scale heterogeneous rainfall patterns in response to changes in climate. We note pervasive dipole-like tropical precipitation patterns, as well as different loci of precipitation throughout Marine Isotope Stage 5 than recorded in the Holocene. These rainfall patterns cannot be solely attributed to meridional shifts in the Inter-Tropical Convergence Zone.


2021 ◽  
pp. 1-18
Author(s):  
Martin G. Lockley ◽  
Charles W. Helm ◽  
Hayley C. Cawthra ◽  
Jan C. De Vynck ◽  
Michael R. Perrin

Abstract More than 250 Pleistocene vertebrate trace fossil sites have been identified on the Cape south coast of South Africa in aeolianites and cemented foreshore deposits. These discoveries, representing the epifaunal tracks of animals that moved over these sand substrates, complement traditional body fossil studies, and contribute to palaeo-environmental reconstruction. Not described in detail until now, but also important faunal components, are the infaunal traces of animals that moved within these sandy substrates. Six golden mole burrow trace sites (Family Chrysochloridae) have been identified on the Cape south coast. In addition, three sites, including one on the Cape southeast coast, have been identified that show evidence of sand-swimming, probably by a golden mole with a means of locomotion similar to that of the extant Eremitalpa genus. Such traces have not been described in detail in the global ichnology record, and merit the erection of a new ichnogenus Natatorichnus, with two ichnospecies, N. subarenosa ichnosp. nov and N. sulcatus ichnosp. nov. Care is required in the identification of such traces, and the orientation of the trace fossil surface needs to be determined, to avoid confusion with hatchling turtle tracks. Substantial regional Pleistocene dune environments are inferred from these sand-swimming traces.


2011 ◽  
Vol 246 (1-2) ◽  
pp. 312-323 ◽  
Author(s):  
Britta J.L. Jensen ◽  
Shari J. Preece ◽  
Michel Lamothe ◽  
Nick J.G. Pearce ◽  
Duane G. Froese ◽  
...  

2014 ◽  
pp. 161-179
Author(s):  
Rudi J. van Aarde ◽  
Robert A. R. Guldemond ◽  
Pieter I. Olivier
Keyword(s):  

2018 ◽  
Vol 33 (8) ◽  
pp. 934-944 ◽  
Author(s):  
Feng Li ◽  
Jian Wang ◽  
Xinying Zhou ◽  
Xiaomin Wang ◽  
Hao Long ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document