New Swartpuntia occurrence found within the Aar Member

Publication date

2025-02

Authors

Gibson, Brandt M.
Stengel, Ingrid
Nghishidulu, Zakeus
Liberty, Peter R.
Bissick, Ajani
Boscaini, Andrea
Davies, Joshua H.F.L.
Halverson, Galen P.
Hilgen, F.J.ORCID 0000-0002-5683-259XISNI 0000000385598525
Spiering, Bianca RobinORCID 0009-0007-8561-0922ISNI 000000052756433X

Editors

Advisors

Supervisors

Document Type

Article
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License

cc_by_nc_nd

Abstract

A new occurrence of Swartpuntia germsi is reported from Farm Aar near Aus in southern Namibia. It is preserved as incomplete part/counterpart in two dimensions, with a folded petaloid. Stratigraphically correlated to a minimum depositional age of 547.32 ± 0.31 Ma, this represents the oldest global occurrence of Swartpuntia and documents a unique style of preservation within the Nama Group. Lastly, the occurrence increases the taxonomic and ecological diversity preserved at Farm Aar, making Farm Aar one of the only locations to preserve all common forms of Erniettomorph taxa.

Keywords

Ediacara biota, Erniettomorpha, Witputs subbasin, Geology

Citation

Gibson, B M, Stengel, I, Nghishidulu, Z, Liberty, P R, Bissick, A, Boscaini, A, Davies, J H F L, Halverson, G P, Hilgen, F J, Spiering, B, Vickers-Rich, P & Laflamme, M 2025, 'New Swartpuntia occurrence found within the Aar Member', Gondwana Research, vol. 138, pp. 186-191. https://doi.org/10.1016/j.gr.2024.11.002