Palaeontologia africana

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ISSN (print): 0078-8554 ISSN (electronic): 2410-4418 For queries regarding content of Palaeontologia africana collections please contact Jonah Choiniere by email : jonah.choiniere@wits.ac.za or Tel : 011 717 6684

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15th Biennial Meeting of the Palaeontological Society of Southern Africa, Albany Museum and Rhodes University, 7–10 September 2006
(BERNARD PRICE INSTITUTE FOR PALAEONTOLOGICAL RESEARCH, 2007)
7th Biennial Conference of the Palaeontological Society of South Africa 6th-9th September 1992 Programme
(Bernard Price Institute for Palaeontological Research, 1993)
A new middle Permian burnetiamorph (Therapsida: Biarmosuchia) from the South African Karoo filling a gap in the biarmosuchian record
(The Evolutionary Studies Institute, 2024-09) Matlhaga, Fonda; Benoit, Julien; Rubidge, Bruce S
Biarmosuchia, the most basal therapsid clade, is represented by relatively few specimens known from Permian deposits in Russia and southern Africa. In both the Guadalupian (middle Permian) and Lopingian (late Permian), biarmosuchians represent less than 1% of the fossil record at the specimen level. Here, we describe a new burnetiamorph biarmosuchian, Impumlophantsi boonstrai, based on a partial skull and associated postcrania from the upper Tapinocephalus Assemblage Zone. It is characterized by the presence of a low nasal crest with a unique morphology among burnetiamorphs. Inclusion of this taxon in an updated phylogenetic analysis of biarmosuchians indicates that this specimen is one of the most basal burnetiamorphs, representing the only record of this grade from the middle Permian.
A Tribute to Professor Bruce Sidney Rubidge
(2023-07) Hancox, P. John; Day, Michael O.
Professor Bruce Sidney Rubidge has published hundreds of articles and papers covering various aspects of the geology of the Cape and Karoo supergroups and their palaeontological signatures. His work has significantly advanced our understanding of numerous taxonomic groups, as well as the litho- and biostratigraphy of the Karoo Supergroup. He has also driven the robust radiometric dating of the lower half of the Karoo Supergroup, and via supervision and collaboration with postgraduate students, our understanding of the basin fill and the end-Guadalupian extinction in South Africa. Bruce has also supervised numerous honours, masters and doctoral students (Fig. 1) and provided strong research leadership to many South African and international collaborators. Bruce’s vision and dedication to first the Bernard Price Institute for Palaeontological Research (BPI) and now the Evolutionary Studies Institute (ESI) have guided it to become the connected 21st century establishment that it is today.
Abstracts of the 19th Biennial Conference of the Palaeontological Society of southern Africa
(2017-04-28)
Acknowledgements
(Bernard Price Institute for Palaeontological Research, 2004-12)
The advent of herbivory in certain reptilian lineages during the Triassic
(Bernard Price Institute for Palaeontological Research, 1978) Gow, C. E.
The dentitions of several presumed herbivorous Triassic reptiles are described and discussed. Some changes in dentitions with growth suggest that juveniles were insectivorous. The appearance of these forms may have been facilitated by floral changes which took place in the early Triassic.
Affiliations
(BERNARD PRICE INSTITUTE FOR PALAEONTOLOGICAL RESEARCH, 2003-12)
The affinities of Proterochampsa barrioneuvoi Reig
(Bernard Price Institute for Palaeontological Research, 1975) Cruickshank, Arthur R I
Proterochampsa barrioneuvoi Reig is re-examined and is confirmed as a proterosuchian thecodont. None of the features previously thought to ally it to the Crocodilia are solely characteristic of that group. On the other hand it is not a phytosaur nor phytosaur ancestor, only showing one real trend towards these animals in the rearward migration of the internal and external nares. Proterochampsa and its relatives Chanaresuchus, Gualosuchus and Cerritosaurus are too late in time to be phytosaur ancestors. They are grouped together in the Proterochampsidae, a family within the Proterosuchia.
The affinities of the early cynodont reptile, Nanictosaurus
(Bernard Price Institute for Palaeontological Research, 1990) van Heerden, Jacques; Rubidge, Bruce
This investigation into the anatomy of the four extant specimens of Nanictosaurus has revealed that there is one valid species, viz. N. kitchingi Broom 1936 which has two junior synonyms, viz. N. robustus Broom 1940 and N. rubidgei Broom 1940. The closest known relative of Nanictosaurus is the well-known cynodont Thrinaxodon liorhinus. The differences from Thrinaxodon and other early cynodonts are discussed and illustrated.
African chelonians from the Jurassic to the present: phases of development and preliminary catalogue of the fossil record
(Bernard Price Institute for Palaeontological Research, 2000) de Lapparent de Broin, France
The five major phases in the palaeontological history of African chelonians are presented: 1) autochthonous development of the north Gondwanan pleurodires from a Pangean source group; 2) littoral expansion of a member of this group (Bothremydidae), accompanied by the arrival of Laurasian marine turtles; 3) in situ development of pleurodires and the immigration of Eurasian cryptodires (Oligo-Miocene) traversing the Tethys in several waves; 4) great diversification and endemism (Pliocene to Holocene); 5) important faunal reduction due to climatic changes at the end of Holocene times (cooling, aridification); elsewhere, great speciation and arrival during the Present of the last European immigrant in the north. Throughout the period under consideration there were several reductions in taxonomic diversity and emigrations from Africa. A preliminary catalogue of the fossil record of African chelonians is given, presented country by country followed by a taxonomic listing.
African fossil Lissamphibia
(Bernard Price Institute for Palaeontological Research, 1995) van Dijk, D. E.
The Anura (Frogs and Toads) are represented in Africa and associated regions by fossils of every epoch from the Cretaceous to the Holocene. Pipid frogs of African affinity are known from the Early Cretaceous of Israel and Later Cretaceous of South America and Africa; those of Israel and South America have been well-studied, but only one from Africa has been: Eoxenopoides reuningi from Namaqualand. Two well-studied Palaeocene frogs of South America, Shelania pascuali and Xenopus romeri, have affinities with the African pipids. Apart from a Miocene assemblage from North Africa (including pipids, which are now exclusively sub-Saharan) and one species from Namibia, Xenopus stromeri, the fossil African anurans remain largely unstudied. Deposits in which the African anuran fossils occur represent crater lakes, other lacustrine deposits, including lacustrine tuffs, river terraces, deltas, estuarine/lagoon zones, karst landscapes and archaeological sites; data are not available for several of the recorded fossils. No fossils in Africa appear to have been definitely ascribed to the Urodela or Caecilia.
An aggregation of juvenile Youngina from the Beaufort Group, Karoo Basin, South Africa
(Bernard Price Institute for Palaeontological Research, 1995) Smith, Roger M. H.; Susan, E. Evans
An assemblage of five fully-articulated juvenile skeletons of Youngina has been recovered from the Late Permian strata of the south-western Karoo Basin. These 12-cm-long skeletons are not only the first articulated juveniles of this taxon, but also the oldest yet found in the Karoo Basin. They are preserved in overbank mudrocks of the Hoedemaker Member (Beaufort Group, Adelaide Subgroup) on the farm Leeukloof 43 in the Beaufort West district. Although they are estimated to be some three million years older than previously described Youngina, these specimens show no significant skeletal differences. The high degree of articulation and the spatial arrangement of these skeletons in a dish-shaped hollow is compelling evidence for them having huddled together within an underground burrow. Taphonomic analysis of associated fossils indicates that this was probably a mechanism to reduce water loss during drought on the ancient Karoo floodplains .
Allometric growth in the Diademodontinae (Reptilia; Therapsida); a preliminary report
(Bernard Price Institute for Palaeontological Research, 1978) Grine, F. E.; Hahn, B. D.
The hypothesis that many, if not all, of the South African and Zambian specimens, which have been regarded as different diademodontine genera and species, actually consitute a taxonomically homogeneous, ontogenetic growth series is tested. The principles of allometric growth were applied to this sample of fossils, which varied considerably in size and shape. The approach which was followed was exclusively morphometric. The results indicate that these specimens do represent various ontogenetic stages of a growth series of only a single species of Diademodon Seeley.
Alun R. Hughes: Publications and Reports
(BERNARD PRICE INSTITUTE FOR PALAEONTOLOGICAL RESEARCH, 1991) Tobias, Philip V.; White, H; Strong, V E
Alun Rhun Hughes: a tribute after forty four years of companionship in Anatomy and Anthropology
(Bernard Price Institute for Palaeontological Research, 1991) Tobias, Phillip V
The ammonite genus Diaziceras Spath, 1921, from the Campanian of KwaZulu-Natal, South Africa, and Madagascar
(2012-12) Kennedy, William James; Klinger, Herbert Christian
The ammonite genus Diaziceras Spath, 1921, and the type species, D. tissotiaeforme are revised and referred to the subfamily Lenticeratinae Hyatt, 1900, of the family Sphenodiscidae Hyatt, 1900. Skoumalia Summesberger, 1979, is interpreted as a junior synonym of Diaziceras. Diaziceras guillantoni Hourcq, 1949, and D. spathi Hourcq, 1949, are regarded as synonyms of D. tissotiaeforme, and all are referred to the Lower Campanian on the basis of records from Madagascar.
Ammonites from offshore deposits near Bogenfels, Namibia
(BERNARD PRICE INSTITUTE FOR PALAEONTOLOGICAL RESEARCH, 2007) Klinger, Herbert Christian; McMillan, Ian K.
Pyritized ammonite nuclei and fragments were recovered by vibracore sampling from offshore deposits near Bogenfels, Namibia. Although these could only be identified at genus level, the association of Baculites and Scaphites suggest a Coniacian age for these deposits which conforms with the age of the associated foraminifera.
Anatomy and phylogenetic relationships of a possible lessemsaurid with associated plant fossils from the lower part of the Elliot Formation
(Evolutionary Studies Institute, 2023) Moopen, Atashni; Matiwane, Aviwe; Viglietti, Pia A; Choiniere, Jonah N
The Elliot Formation forms the middle layer of the Stormberg Group of South Africa and ranges in age from the Upper Triassic to the Lower Jurassic. This stratigraphic unit bears a rich and varied faunal assemblage, including a wide variety of vertebrate fossils, the most abundant of which are sauropodomorph dinosaurs. While Early Jurassic sauropodomorphs are increasingly well-known, our knowledge of Late Triassic sauropodomorphs from the lower Elliot Formation is still at a deficit. Specimens from this section of the Stormberg Group can provide key information on the early evolution of Sauropodomorpha. Here we report on a new specimen of a Late Triassic sauropodomorph from a locality a short distance above the Molteno – Elliot boundary making it among the stratigraphically lowest sauropodomorphs from South Africa. Phylogenetic analyses and body mass estimations indicate the specimen represents a medium-to-large-bodied possible lessemsaurid with a combination of plesiomorphic and derived characters. This specimen adds to the diversity of the lower Elliot Formation and provides stronger support for a biogeographical link between the Elliot Formation and the Los Colorados Formation of Argentina. This skeletally immature possible lessemsaurid also provides insight into body size evolution during the Norian, a critical time for the evolution of sauropodomorph gigantism. The fossil plant genera Taeniopteris and Cladophlebis were recovered from sediments containing the sauropodomorph specimen, documenting one of the first co-occurrences of dinosaurs and plant material in the Elliot Formation, as well as preserving direct evidence of plant-insect interactions.
Annals of the Bernard Price Institute for Palaeontological Research, University of the Witwatersrand, Johannesburg
(Bernard Price Institute for Palaeontological Research, 1953)
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