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Frank Wesselingh

MSc-thesis 1993, title: “On the systematics of Miocene aquatic mollusks from Los Chorros (dept. Amazonas, Colombia) and Nuevo Horizonte (dept. Loreto, Peru), with comments on palaeoenvironment and palaeogeography”.
Currently employed as a curator of the division of Cenozoic Mollusca at the Nationaal Natuurhistorisch Museum, Leiden, The Netherlands and a PhD-student, financed by the Academy of Finland, at the Biodiversity Centre, University of Turku, Turku, Finland. The Promotion is due to take place early 2001.The Pebas Formation of Miocene Western Amazonia is incredible rich in very well preserved molluscs. The fauna is mostly aquatic (>99% of the estimated abundance), endemic and extinct. The fauna points to long-lived lacustrine paleoenvironments during deposition. Lake Pebas was at its maximum over 1.1. million square kilometres. It originated in the latest Oligocene in the Magdalena-Llanos Basins of Colombia, and gradually expanded eastward and separated into a northern Llanos and Southern Pebas (or Western Amazon) Basin. Lake Pebas was terminated by the tectonically induced uplift of western Amazonia and the formation of the modern eastward flowing Amazon river, c. 8 million years ago. During the time interval between 25 and 8 million years ago, the Pebas fauna radiated, and experienced episodically faunal exchange with fauna’s from Venezuela. Aim of the research is to reconstruct paleoenvironments in Miocene Western Amazonia, to establish a stratigraphical framework, to deal with evolution of the Pebas fauna and to establish biogeographical affinities of the fauna.

Publications

  • Wesselingh, F., Gürs, K., Davila Arroyo, L. & Nunez Vargas, C.A. (1996) - A Pliocene freshwater molluscan faunule from Guatemala, with implications for Neogene neotropical molluscan dispersal. Documenta Naturae 100: 7-22.
  • Wesselingh, F. (1996) –New Pliocene fresh water gastropods from Guatemala. Documenta Naturae 100: 23-36.
  • Wesselingh, F.P. (1998) – Over het onderscheid tussen Dreissena Beneden, 1835 en Mytilopsis Conrad, 1858 (On the distinction between Dreissena Beneden, 1835 and Mytilopsis Conrad, 1858). Correspondentieblad van de NMV 302: 52-54 (in dutch with english summary)
  • Vonhof, H.B., Wesselingh, F.P. & Ganssen, G.M. (1998) – Reconstruction of the Miocene Western Amazonian aquatic system using molluscan isotopic signatures. Palaeoecology, Palaeoclimatology, Palaeogeography 141: 85-93
  • Räsänen, M., Linna, A., Irion, G., Rebata Hernani, L., Vargas Huaman, R. & Wesselingh, F. (1998) - Geologia y geoformas de la zona de Iquitos. In: Kalliola, R. & Flores Paitán, S. (eds.), Geoecología y desarrollo Amazónico: Estudio integrado en la zona de Iquitos, Perú. Annales Universitatis Turkuensis Ser A II 144: 59-137.
  • Linna, A., Irion, G., Kauffman, S., Wesselingh, F. & Kalliola, R. (1998) - Heterogeneidad edáfica de la zona de Iquitos: Origen y comprensión de sus propiedades. En: Kalliola, R. & Flores Paitán, S. (eds.), Geoecología y desarrollo Amazónico: Estudio integrado en la zona de Iquitos, Perú. Annales Universitatis Turkuensis Ser A II 144: 461-480.
  • John G. Lundberg, Larry G. Marshall, Javier Guerrero, Brian Horton, Maria Claudia S. L. Malabarba, and Frank Wesselingh (1998) – The Stage for Neotropical Fish Diversification: A History of Tropical South American Rivers in: L.R. Malabarba, R.E.Reis, R.P.Vari, C.A.S.Lucena and Z.M.S.Lucena (eds.). Phylogeny and Classification of Neotropical Fishes. Museu de Ciências e Tecnologia, PUCRS. Porto Alegre (36pp).
  • Wesselingh, F.P. & Gittenberger, E. (1999) – The Giant Amazonian Snail (Pulmonata: Acavidae), Beats Them All. The Veliger 42(1); 67-71.
  • Wesselingh, F.P., Cadee, G.C. & Renema, W.R. (1999) – Flying high: on the airborne dispersal of aquatic organisms as illustrated by the distribution histories of the gastropod genera Tryonia and Planorbarius. Geologie en Mijnbouw 78: 165-174 (1999).
  • Vervoenen, M., F.P. Wesselingh & F.A.D. van Nieulande (2001). Mytilus antiquorum J. Sowerby, 1821, and other Pliocene mussels (Mollusca, Bivalvia) from the southern North Sea Basin.- Contr. Tert. Quatern. Geol. 37: 73-81.
  • Vermeij, G.J. & F.P. Wesselingh (2002). Neogastropod molluscs from the Miocene of Western Amazonia, with comments on marine to freshwater transitions in molluscs.- Journal of Paleontology 76(2): 65-70.
  • Wesselingh, F.P., M.E. Räsänen, G. Irion, H.B. Vonhof, R. Kaandorp, W. Renema, L. Romero Pittman & M. Gingras (in press). Lake Pebas: a palaeoecological reconstruction of a Miocene, long-lived lake complex in western Amazonia.- Cainozoic Research, 1(1-2) (2001).
  • Wesselingh, F.P., M. Vervoenen, M., & F.A.D. van Nieulande (in press). On the identity of Mytilus edulis forma giganteus Wood, 1874 (Pliocene, North Sea Basin), with implications for the generic identity of European Tertiary mytilids.- Cainozoic Research, 1(1-2) (2001).

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