Abstract
The Pliocene of Laetoli (Tanzania) has produced a taxonomically unbalanced fauna of amphibians and squamate reptiles. Amphibians are represented by only two specimens belonging to indeterminate anurans. Similarly, lizards are comprised of two specimens that are referred to an indeterminate acrodontan and an indeterminate scincomorphan. Snakes are more numerous (more than 150 specimens) and taxonomically diverse. They include a boid (Python sebae or P. natalensis), at least three colubrids (cf. Thelotornis, cf. Rhamphiophis, one indeterminate colubrid, and another indeterminate taxon that might be a modern specimen), an elapid (Naja robusta), a possible distinct elapid, and a viperid (Bitis olduvaiensis or a new species of Bitis). The latter taxon represents the most common snake. The paleoecological implications of the fauna are not readily apparent because the most useful indicator taxa are distributed in different beds. Based on the entire fauna it may be concluded that the Laetoli area was neither a desert nor covered by forest. Bodies of water were periodically present, at least during the period of deposition of the Upper Laetolil Beds. An unusual feature of the Laetoli snake community, but similar to a few other Neogene faunas from sub-Saharan Africa, is the fact that colubrids are not the dominant taxon.
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References
Auffenberg, W. (1963). The fossil snakes of Florida. Tulane Studies in Zoology, 10, 131–216.
Augé, M. (1997). A consideration of the phylogenetic significance of acrodonty. Herpetological Journal, 7, 111–113.
Augé, M., & Rage, J. C. (2006). Herpetofaunas from the Upper Paleocene and Lower Eocene of Morocco. Annales de Paleontologie, 92, 235–253.
Bailon, S. (1989). Les amphibiens et les reptiles du Pliocène supérieur de Balaruc II (Hérault, France). Palaeovertebrata, 19, 7–28.
Bailon, S. (2000). Amphibiens et reptiles du Pliocène terminal d’Ahl al Oughlam (Casablanca, Maroc). Geodiversitas, 22, 539–558.
Bailon, S., & Rage, J. C. (1994). Squamates néogènes et pléistocènes du Rift occidental, Ouganda. In B. Senut & M. Pickford (Eds.), Geology and Palaeobiology of the Albertine Rift Valley, Uganda-Zaïre (Palaeobiology, Vol. II, pp. 129–135). Orléans: CIFEG Occasional Publication.
Broadley, D. G. (1999). The southern African python, Python natalensis, A. Smith 1840, is a valid species. African Herp News, 29, 31–32.
Cooper, J. S., Poole, D. F. G., & Lawson, R. (1970). The dentition of agamid lizards with special reference to tooth replacement. Journal of Zoology, 162, 85–98.
Deino, A. L. (2011). 40Ar/39Ar dating of Laetoli, Tanzania. In T. Harrison (Ed.), Paleontology and geology of Laetoli: Human evolution in context (Geology, geochronology, paleoecology and paleoenvironment, Vol. 1, pp. 77–97). Dordrecht: Springer.
Delfino, M., Segid, A., Dessale, Y., Shoshani, J., Rook, L., & Libsekal, Y. (2004). Fossil reptiles from the Pleistocene Homo-bearing locality of Buia (Eritrea, northern Danakil Depression). In E. Abbate, B. Woldehaimanot, Y. Libsekal, T. M. Tecle, & L. Rook (Eds.), A step towards human origins. The Buia Homo One-million-years ago in the Eritrean Danakil Depression (East Africa) (pp. 51–60). Rivista Italiana di Paleontologia e Stratigrafia 110, Supplement, Milan.
Ditchfield, P., & Harrison, T. (2011). Sedimentology, litho-stratigraphy and depositional history of the Laetoli area. In T. Harrison (Ed.), Paleontology and geology of Laetoli: Human evolution in context (Geology, geochronology, paleoecology, and paleoenvironment, Vol. 1, pp. 47–76). Dordrecht: Springer.
Estes, R., de Queiroz, K., & Gauthier, J. (1988). Phylogenetic relationships within the lizard families. In R. Estes & G. Pregill (Eds.), Phylogenetic relationships of the Lizard families (pp. 119–281). Palo Alto: Stanford University Press.
Evans, S. E., & Sigogneau-Russell, D. (1997). New sphenodontians (Diapsida: Lepidosauria: Rhynchocephalia) from the early Cretaceous of North Africa. Journal of Vertebrate Paleontology, 17, 45–51.
Evans, S. E., Prasad, G. V. R., & Manhas, B. K. (2002). Fossil lizards from the Jurassic Kota Formation of India. Journal of Vertebrate Paleontology, 22, 299–312.
Frost, D. R., & Etheridge, R. (1989). A phylogenetic analysis and taxonomy of iguanian lizards (Reptilia: Squamata). Miscellaneaous Publication, University of Kansas, Museum of Natural History, 81, 1–65.
Gmelin, S. G. (1789). In C. Linnaeus (Ed.), Systema Naturae per regna tria naturae secundum classes, ordines, genera, species, cum caracteribus, differentiis, synonymis, locis (pp. 1033–1516). Leipzig: Beer.
Golay, P., Smith, H. M., Broadlay, D. G., Dixon, J. R., McCarthy, C., Rage, J. C., Schätti, B., & Toriba, M. (1993). Endoglyphs and other major venomous snakes of the world, A checklist. Azemiops S.A. Geneva: Herpetological Data Center.
Gray, J. E. (1842). Monographic synopsis of the vipers of the family Viperidae. The Zoological Miscellany, 2, 68–71.
Hecht, M. K. (1987). Fossil snakes and crocodilians from the Sahabi Formation of Libya. In N. T. Boaz, A. El Arnauti, A. W. Gaziri, J. De Heinzelein, & D. D. Boaz (Eds.), Neogene paleontology and geology of Sahabi (pp. 101–106). New York: Alan R. Liss.
Merrem, B. (1820). Versuch eines Systems der Amphibien. Marburg: Krieger.
Meylan, P. A. (1987). Fossil snakes from Laetoli. In M. D. Leakey & J. M. Harris (Eds.), Laetoli: A Pliocene site in northern Tanzania (pp. 78–82). Oxford: Clarendon.
Moody, S.M. (1980). Phylogenetic and historical biogeographical relationships of the genera in the family Agamidae (Reptilia: Lacertilia). Ph.D. dissertation, University of Michigan, Ann Arbor.
Moody, S. M., & Rocek, Z. (1980). Chamaeleo caroliquarti (Chamaeleonidae, Sauria): A new species from the Lower Miocene of Central Europe. Vestník Ústredniho ústavu geologického, 55, 85–92.
Ndessokia, P.N.S. (1990). The mammalian fauna and archaeology of the Ndolanya and Olpiro Beds, Laetoli, Tanzania. Ph.D. dissertation, University of California, Berkeley.
Peters, W. K. H. (1854). Diagnosen neuer Batrachier, welche zusammen mit der fruher (24 Juli und 17 August) gegebenen uebersicht der Schlangen und Eidechsen mitgetheilt werden. Bericht über die zur Bekanntmachung geeigneten Verhandlungen der königlich-preussischen Akademie der Wissenschaften zu Berlin1854 (November), pp. 614–628.
Pitman, G. R. S. (1974). A guide to the snakes of Uganda. Glasgow: Wheldon and Wesley.
Rage, J. C. (1973). Fossil snakes from Olduvai, Tanzania. In L. S. B. Leakey, R. J. G. Savage, & S. C. Coryndon (Eds.), Fossil vertebrates of Africa (Vol. 3, pp. 1–6). London: Academic.
Rage, J. C. (1976). Les squamates du Miocène de Beni Mellal, Maroc. Géologie Mediterranéenne, 3, 57–70.
Rage, J. C. (1984). Serpentes. Encyclopedia of paleoherpetology, Part 11. Stuttgart: Fischer.
Rage, J. C. (2001). Fossil snakes from the Palaeocene of São José de Itaboraí, Brazil. Part II. Boidae. Palaeovertebrata, 30, 111–150.
Rage, J. C. (2003). Squamate reptiles from the early Miocene of Arrisdrift (Namibia). In M. Pickford & B. Senut (Eds.), Geology and palaeobiology of the Central and Southern Namibia, Palaeontology of the Orange River Valley, Namibia (Vol. 2, pp. 43–50). Memoirs of the Geological Survey of Namibia, 19. Windhoek: Geological Survey of Namibia.
Scanlon, J. D., & Mackness, B. S. (2001). A new giant python from the Pliocene Bluff Downs local fauna of northeastern Queensland. Alcheringa, 25, 425–437.
Scanlon, J. D., Lee, M. S. Y., & Archer, M. (2003). Mid-Tertiary elapid snakes (Squamata, Colubroidea) from Riversleigh, northern Australia: Early steps in a continent-wide adaptive radiation. Geobios, 36, 573–601.
Smith, A. 1840 (1838–1849). Illustrations of the zoology of South Africa, consisting chiefly of figures and descriptions of the objects of natural history collected during an expedition into the Interior of South Africa in the years 1834, 1835, and 1836. Reptilia. Facsimile reprint, 1976. Johannesburg: Winchester.
Smith, A. 1849 (1839–1849). Contributions to South African zoology. Annals and Magazine of Natural History, 2, 30–33, 92–94.
Szyndlar, Z. (1984). Fossil snakes from Poland. Acta Zoologica Cracoviensia, 28, 1–156.
Szyndlar, Z. (1988). Two extinct species of the genera Malpolon and Vipera (Reptilia, Serpentes) from the Pliocene of Layna (Spain). Acta Zoologica Cracoviensia, 31, 687–706.
Szyndlar, Z., & Böhme, W. (1996). Redescription of Tropidonotus atavus von Meyer, 1855 from the upper Oligocene of Rott (Germany) and its allocation to Rottophis gen. nov. (Serpentes, Boidae). Palaeontographica A, 240, 145–161.
Szyndlar, Z., & Rage, J. C. (2003). Non-erycine Booidea from the Oligocene and Miocene of Europe. Cracow: Institute of Systematics and Evolution of Animals.
Uetz, R., Chenna, R., Etzold, T., & Hallermann, J. (2006). The EMBL reptile database. http://www.reptile-database.org
Acknowledgements
We are grateful to Terry Harrison (New York University) for his invitation to contribute to this volume on the Pliocene of Laetoli. We wish to thank Ivan Ineich and Franz Jullien (Muséum national d’Histoire naturelle, Paris) for their help. T. Harrison and two anonymous reviewers made helpful suggestions and improved the English. P. Loubry (MNHN, Paris) took the photographs.
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Rage, JC., Bailon, S. (2011). Amphibia and Squamata. In: Harrison, T. (eds) Paleontology and Geology of Laetoli: Human Evolution in Context. Vertebrate Paleobiology and Paleoanthropology Series. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-9962-4_16
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