A fossil Potadoma (Gastropoda: Pachychilidae) from Pleistocene central Kalahari fluvio-lacustrine sediments

  title={A fossil Potadoma (Gastropoda: Pachychilidae) from Pleistocene central Kalahari fluvio-lacustrine sediments},
  author={Frank Riedel and Thomas Von Rintelen and Sebastian Erhardt and Annette Kossler},
A shell of the gastropod Potadoma was discovered in fluvio-lacustrine sediments of the Kalahari (Botswana). A late Pleistocene age of the sediments of ca. 46,000 cal. years BP was established by radiocarbon dating. It is the first record of the freshwater genus Potadoma from southern Africa. Modern counterparts as well as other Pleistocene species of Potadoma had been reported elsewhere from (palaeo-) habitats located at least 2,000 km further in the north, e.g., in the Congo Basin. So far it… 
Dynamics of a Kalahari long-lived mega-lake system: hydromorphological and limnological changes in the Makgadikgadi Basin (Botswana) during the terminal 50 ka
The Kalahari features a long-lived lacustrine system which may exist since the Early Pleistocene. The emergence of an extant cichlid fish radiation from this (palaeo-) lake during the Middle
The Makgadikgadi Pans in northern Botswana are the desiccated relicts of a former major inland lake system, with fossil shorelines preserved at five distinct elevations (~995 m, 945 m, 936 m, 920 m
Checklist of the fresh and brackish water snails (Mollusca, Gastropoda) of Bénin and adjacent West African ecoregions
A first checklist of the fresh and brackish water gastropod fauna from Bénin and adjacent West African ecoregions is presented, based on an extensive literature review and field surveys between September 2014 and June 2019.
Diagenetic transformations and silcrete–calcrete intergrade duricrust formation in palaeo‐estuary sediments
The Boteti palaeo‐estuary in northern Botswana is located where the endoreic Boteti river, an overflow from the regional Okavango river system, enters the Makgadikgadi pans. The present work
Disjunct distributions of freshwater snails testify to a central role of the Congo system in shaping biogeographical patterns in Africa
It is argued that the closest relatives of present day viviparids in Lake Malawi are living in the Middle Congo River, thus shedding new light on the origin of the endemic fauna of this rift lake.


The late Cenozoic Thiaridae (Mollusca, Gastropoda, Cerithioidea) of the Albertine Rift Valley (Uganda-Congo) and their bearing on the origin and evolution of the Tanganyikan thalassoid malacofauna
The Albertine fossil record shows that escalation in shell morphology and ornamentation in the Thiaridae was extremely rapid, as in the Ampullariidae and Viviparidae (Van Damme & Pickford, 1995, 1999).
Late Pleistocene wetting and drying in the NW Kalahari: an integrated study from the Tsodilo Hills, Botswana
Freshwater snails of East Caprivi and the lower Okavango River Basin in Namibia and Botswana
A systematic account is given of the aquatic gastropod fauna of the lower Okavango River in Namibia and Botswana, and of the East Caprivi area in Namibia, based on collections made mostly in 1983–86
After the flood: The fluvio-lacustrine landforms of Northern Botswana
  • P. Shaw
  • Environmental Science, Geography
  • 1988
An extant cichlid fish radiation emerged in an extinct Pleistocene lake
The discovery of a recently adaptive radiation in a large lake that dried up in the Holocene seeded all major river systems of southern Africa with ecologically diverse cichlids reveals how local evolutionary processes operating during a short window of ecological opportunity can have a major and lasting effect on biodiversity on a continental scale.
Palaeofluvial geomorphology in southern Africa: a review
  • E. Dollar
  • Environmental Science, Geography
  • 1998
This article presents an overview of palaeofluvial geomorphology research in southern Africa. For the purposes of this article this includes South Africa, Zimbabwe, Namibia, Lesotho, Swaziland and
The Main Stages of the Late Quaternary Evolution of the Kalahari Region, Southern Africa
  • K. Heine
  • Environmental Science, Geography
  • 1982
The palaeogeographical and palaeoclimatic development of the Kalahari region provides strong evidence that South African climatic changes in precipitation and temperature, as well as in surface winds