Kalahari Deposits

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Kalahari Deposits
Stratigraphic range: Campanian-Maastrichtian
~80–66  Ma
Type Geological formation
Lithology
Primary Conglomerate
Other Mudstone
Location
Coordinates 29°30′S18°24′E / 29.5°S 18.4°E / -29.5; 18.4
Approximate paleocoordinates 44°12′S2°18′E / 44.2°S 2.3°E / -44.2; 2.3
Region Western Cape
Country South Africa
Type section
Named for Kalahari Desert
South Africa relief location map.svg
Lightgreen pog.svg
Kalahari Deposits (South Africa)

The Kalahari Deposits is an Late Cretaceous (Campanian to Maastrichtian) [1] [2] geologic formation in South Africa. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation. [3] The depositional environment is described as a crater lake where poorly lithified, concretionary conglomerate and volcaniclastic, intraclastic, calcareous mudstone were deposited under quiet subaqueous conditions, probably a "crater-fill succession above an olivine-melilitie intrusion". [4]

Contents

Fossil content

Color key
Taxon Reclassified taxonTaxon falsely reported as presentDubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Dinosaurs

Ornithischians

Ornithischians of the Kalahari Deposits
GenusSpeciesLocationStratigraphic positionMaterialNotesImage
Kangnasaurus [5] [6] K. coetzeei Western Cape Campanian to Maastrichtian Tooth, Postcranial Elements Including a FemurA elasmarian ornithopod

Sauropods

Sauropods of the Kalahari Deposits
GenusSpeciesLocationStratigraphic positionMaterialNotesImage

Theropods

Theropods of the Kalahari Deposits
GenusSpeciesLocationStratigraphic positionMaterialNotesImage

Crocodylomorphs

Crocodylomorphs of the Kalahari Deposits
GenusSpeciesLocationStratigraphic positionMaterialNotesImage

Mosasaurs

Mosasaurs of the Kalahari Deposits
GenusSpeciesLocationStratigraphic positionMaterialNotesImage
Prognathodon [7] P. curriiWestern CapeCampanian to MasstrichtianTooth FragmentA prognathodontin mosasaurine

Plesiosaurs

Plesiosaurs of the Kalahari Deposits
GenusSpeciesLocationStratigraphic positionMaterialNotesImage

Birds

Birds of the Kalahari Deposits
GenusSpeciesLocationStratigraphic positionMaterialNotesImage

Mammals

Mammals of the Kalahari Deposits
GenusSpeciesLocationStratigraphic positionMaterialNotesImage

Amphibians

Amphibians of the Kalahari Deposits
GenusSpeciesLocationStratigraphic positionMaterialNotesImage

Fish

Fishes of the Kalahari Deposits
GenusSpeciesLocationStratigraphic positionMaterialNotesImage
Squalicorax S. africanusWestern CapeCampanian to MaastrichtianA crow shark
S. pristodontus

Molluscs

Cephalopods

Cephalopods of the Kalahari Deposits
GenusSpeciesLocationStratigraphic positionMaterialNotesImage

See also

References

  1. Ruiz-Omeñaca, José Ignacio; Pereda Suberbiola, Xavier; Galton, Peter M. (2007). "Callovosaurus leedsi, the earliest dryosaurid dinosaur (Ornithischia: Euornithopoda) from the Middle Jurassic of England". In Carpenter Kenneth (ed.). Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs. Bloomington and Indianapolis: Indiana University Press. pp. 3–16. ISBN   978-0-253-34817-3.
  2. Forster CA, de Klerk WJ, Poole KE, Chinsamy-Turan A, Roberts EM, Ross CF (2022). "Iyuku raathi, a new iguanodontian dinosaur from the Early Cretaceous Kirkwood Formation, South Africa". The Anatomical Record. 306 (7): 1762–1803. doi:10.1002/ar.25038. PMID   35860957. S2CID   250730794.
  3. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
  4. Kangnas farm, portion Goebees at Fossilworks.org
  5. "Table 19.1," in Weishampel, et al. (2004). Page 417.
  6. Haughton, Sidney H. (1915). "On some dinosaur remains from Bushmanland". Transactions of the Royal Society of South Africa. 5 (1): 259–264. Bibcode:1915TRSSA...5..259H. doi:10.1080/00359191509519723.
  7. Woolley, M. R.; Caldwell, M. W.; Rey, K.; Amiot, R.; Chinsamy, A. (2025). "A multi-method approach to deciphering the paleobiology of a mosasaur from South Africa". Journal of Vertebrate Paleontology. 44 (6). e2486069. doi:10.1080/02724634.2025.2486069.

Bibliography