Heritage Cases

THIS IS THE ARCHIVE FOR SAHRIS 1.0


THIS SITE IS NOW AN ARCHIVE AND IS NOT SUITABLE FOR MAKING APPLICATIONS

Please be aware that no content and application creation or changes to information on this version of SAHRIS will be retained.

To make applications or utilise SAHRIS for the creation of information, please use the new site:

https://sahris.org.za

Changes to SAHRIS!

The South African Heritage Resources Information System (SAHRIS) has undergone a generational upgrade and restructure. These changes to the site include, but are not limited to:

  • A new & modernised look and layout
  • Improved site usage flows with respect to applications and content creation
  • Improved site performance and stability

Launch for the new version of SAHRIS occurred on Monday the 30th of October 2023.

The new site can be found here:

SAHRIS | SAHRIS

SAHRA Application Closure

Please note the following concerning applications submitted to the South African Heritage Resources Agency (SAHRA) during the December 2023 to January 2024 period.

The full notice is available here: Notice

Special Notice

Following comments received on the proposed Revised Schedule of Fees for applications made to the South African Heritage Resources Agency (SAHRA), made in terms of Section 25(2)(l) of the National Heritage Resources Act No. 25 of 1999 (NHRA) and published in the Government Gazette of 22 July 2022, SAHRA hereby publishes the final Revised Schedule of Fees for Applications made to SAHRA. Applications for provision of services submitted to the South African Heritage Resources Authority (SAHRA), in terms of the National Heritage Resources Act, No. 25 of 1999 (NHRA) must be accompanied by a payment of the appropriate fee, taking effect from 1 January 2023

Revised Schedule of Fees for Applications made to the South African Heritage Resources Agency (SAHRA)

Driefontein Archosaur teeth

  • Log in to post comments
  • 51 reads

CaseViews

CaseHeader

Status: 

HeritageAuthority(s): 

Case Type: 

ProposalDescription: 

Collection of isolated fossil reptile teeth from the Driefontein locality, Karoo Basin, Early Triassic. The fossil teeth represent multiple species and clades and have all been assigned field numbers but are as of yet unidentified. Part of DH’s responsibility will be to assign teeth to more specific clade/taxon to allow for permanent collection numbers. These teeth represent one of the earliest known Triassic tooth assemblages, crucial for reconstructing the recovery and diversification of archosaurs following the end-Permian mass extinction. Tooth assemblages during the period of evolution are rare, and a site as rich as this is unique. This site will be added to a larger project reconstructing the radiation of archosaurs following the end-Permian mass extinction. We have described a Middle Triassic archosaur tooth assemblage from Tanzania and are collaborating on an incredibly rich Late Triassic tooth assemblage from Arizona. This assemblage will enable us to describe tooth morphology of archosaurs within a couple million years of the mass extinction, and provide a comparison for all our other localities. The teeth will also be used to determine how differentiated diet had become in archosaurs from the plesiomorphic morphology and interpreted ancestral carnivory.

Expanded_Motivation: 

We are using tooth disparity as a lens for reconstructing the ecological radiation of archosaurs (and other groups) following the end-Permian mass extinction. The Driefontein isolated teeth provide a critical piece of that radiation during the Early Triassic as one of the few tooth assemblages from that period. All specimens will be photographed, measured with calipers for general size/shape i.e. height, length, width, and scored for qualitative features by eye. At Virginia Tech I will be able to describe the many morphotypes of isolated teeth from the Driefontein locality, as well as create and score a discrete character matrix for these teeth for the purposes of non-metric multidimensional scaling (NMDS). These NMDS results can be compared to other Middle and Late Triassic tooth assemblages I am also working on as part of Hoffman's PhD to understand the ecological diversification of archosauriforms related to the simultaneous lineage diversification.

ApplicationDate: 

Friday, July 26, 2019 - 10:49

CaseID: 

14121

OtherReferences: 

ReferenceList: 

AdditionalDocuments
  1. PDF icon Images - Driefontein teeth Batch 1
  2. PDF icon Images - Driefontein teeth Batch 2
  3. PDF icon Images - Driefontein teeth Batch 3
  4. PDF icon Images - Driefontein teeth Batch4
 
 

Search form