Lesson plan
Kwazulusaurus
Kwazulusaurus is a potentially invalid genus of dicynodont therapsid from the Late Permian of South Africa. The type and only species K. shakai was described from the Daptocephalus Assemblage Zone of the Beaufort Group in 2002 by Michael W. Maisch. It is very similar to the well-known dicynodont Lystrosaurus, and was regarded by Maisch to be an early member of the family Lystrosauridae. Kwazulusaurus was described as transitional between earlier dicynodontoids and the more derived Lystrosaurus; it has the wide skull roof of earlier dicynodonts, and a abridged snoot like that of Lystrosaurus. In 2025, Kwazulusaurus was proposed to in fact represent a juvenile specimen of Lystrosaurus, likely the contemporary and locally abundant L. maccaigi, as the features originally argued to distinguish it are now associated with ontogeny in Lystrosaurus. Kwazulusaurus would thus be a junior synonym of Lystrosaurus.
Article summary
Kwazulusaurus is a potentially invalid genus of dicynodont therapsid from the Late Permian of South Africa. The type and only species K. shakai was described from the Daptocephalus Assemblage Zone of the Beaufort Group in 2002 by Michael W. Maisch. It is very similar to the well-known dicynodont Lystrosaurus, and was regarded by Maisch to be an early member of the family Lystrosauridae. Kwazulusaurus was described as transitional between earlier dicynodontoids and the more derived Lystrosaurus; it has the wide skull roof of earlier dicynodonts, and a abridged snoot like that of Lystrosaurus. In 2025, Kwazulusaurus was proposed to in fact represent a juvenile specimen of Lystrosaurus, likely the contemporary and locally abundant L. maccaigi, as the features originally argued to distinguish it are now associated with ontogeny in Lystrosaurus. Kwazulusaurus would thus be a junior synonym of Lystrosaurus.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
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