A new trirachodontid cynodont from the lower levels of the Burgersdorp Formation (Lower Triassic) of the Beaufort Group, South Africa and the cladistic relationships of Gondwanan gomphodonts

@article{Abdala2006ANT,
  title={A new trirachodontid cynodont from the lower levels of the Burgersdorp Formation (Lower Triassic) of the Beaufort Group, South Africa and the cladistic relationships of Gondwanan gomphodonts},
  author={Fernando Abdala and Johann Neveling and Johann Welman},
  journal={Zoological Journal of the Linnean Society},
  year={2006},
  volume={147},
  pages={383-413}
}
We describe a new trirachodontid cynodont from the base of the Burgersdorp Formation (Subzone A fauna of the Cynognathus Assemblage Zone), of the South African Karoo Basin. Langbergia modisei gen. et sp. nov. is characterized by circular to ovoid in outline upper postcanines and the absence of a maxillary platform lateral to the postcanine series. Apart from the new taxon, we recognize two other species of this family in the Cynognathus Assemblage Zone: Trirachodon berryi and Cricodon metabolus… 
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References

SHOWING 1-10 OF 70 REFERENCES
NEW MASTODONSAURID TEMNOSPONDYLS FROM THE CYNOGNATHUS ASSEMBLAGE ZONE (UPPER BEAUFORT GROUP; KAROO BASIN) OF SOUTH AFRICA
Abstract Two new mastodonsaurid temnospondyls are described from the Early to Middle Triassic Cynognathus Assemblage Zone of the Upper Beaufort Group (Karoo Basin) of South Africa. Paracyclotosaurus…
CYNODONTS FROM THE UPPERMOST BURGERSDORP FORMATION, SOUTH AFRICA, AND THEIR BEARING ON THE BIOSTRATIGRAPHY AND CORRELATION OF THE TRIASSIC CYNOGNATHUS ASSEMBLAGE ZONE
Abstract The Burgersdorp Formation in the Beaufort Group of the South African Karoo Basin records a diverse and rich vertebrate fauna that is referred biostratigraphically to the Cynognathus…
A new galesaurid (Therapsida: Cynodontia) from the Lower Triassic of South Africa
A new galesaurid cynodont, Progalesaurus lootsbergensis gen. et sp. nov., is described on the basis of a well‐preserved skull, lower jaw, right scapula and left atlantal neural arch. Autapomorphies…
A new traversodontid cynodont from the Santa Maria Formation (Ladinian-Carnian) of southern Brazil, with a phylogenetic analysis of Gondwanan traversodontids
TLDR
A phylogenetic analysis of traversodontids from Gondwana revealed a nonmonophyletic relationship for Scalenodon‘species’ from the Anisian Manda beds, and morphological trends of change in the dentition of traversdontids throughout the Triassic are suggested.
A new species of the traversodontid cynodont Exaeretodon from the Santa Maria Formation (Middle/Late Triassic) of southern Brazil
TLDR
The presence of prootic crests in the extensive lateral flange, anterior to the fenestra ovalis, is a noteworthy basicranial trait, unique to this new taxon among non-mammalian cynodonts.
A new carnivorous cynodont from the Ischigualasto Formation (Late Triassic, Argentina), with comments on eucynodont phylogeny
ABSTRACT The nearly complete skull of a recently discovered carnivorous eucynodont, Ecteninion lunensis, gen. et sp. nov., is described. This is the first new genus of carnivorous cynodont reported…
GOMPHODONT CYNODONTS OF THE CHAÑARES FORMATION: THE ANALYSIS OF AN ONTOGENETIC SEQUENCE
TLDR
Consideration of qualitative characters together with the allometric results lead to the conclusion that all forms belong to a single species in a growth series, and Massetognathus pascuali is recognized as the only valid entity.
Temnospondyls from the Beaufort Group (Karoo Basin) of South Africa and Their Biostratigraphy
Adelobasileus from the Upper Triassic of West Texas: the oldest mammal
ABSTRACT Adelobasileus cromptoni Lucas and Hunt, 1990 is based on an incomplete skull from the lower part of the Tecovas Member of the Dockum Formation near Kalgary, Crosby County, Texas. Its age is…
Researches on the Structure, Organization, and Classification of the Fossil Reptilia. Part IX., Section 5. On the Skeleton in New Cynodontia from the Karroo Rocks
TLDR
The name Cynodontia is proposed to be used for animals which resemble Galesaurus in skull structure, and resemble Nythosaurus in the type of molar teeth, of carnivorous type.
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