Journal ArticleDOI
Hyperostotic fish bones (“Tilly bones”) from presumably Pliocene phosphorites of the Lake Manyara area, northern Tanzania
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In this article, hyperostotic fish bones from the presumable Pliocene phosphate-bearing deposits along Lake Manyara, Tanzania, were described, and the pathological structures described were the first hyperstotic bones from a lacustrine paleoenvironment.Abstract:
Hyperostotic fish bones from the presumable Pliocene phosphate-bearing deposits along Lake Manyara, Tanzania, are described. In contrast to marine occurrences of this kind, the pathological structures described herein are the first hyperostotic bones (“Tilly bones”) from a lacustrine paleoenvironment. The origin of the pathological alteration is probably related to extreme hydrochemical conditions of the former Lake Manyara, especially its high content of fluorine.read more
Citations
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Extraordinarily Thick-Boned Fish Linked to the Aridification of the Qaidam Basin (Northern Tibetan Plateau)
Mee-mann Chang,Xiaoming Wang,Huanzhang Liu,Desui Miao,Quanhong Zhao,Guoxuan Wu,Juan Liu,Qiang Li,Zhencheng Sun,Ning Wang +9 more
TL;DR: An unusual cyprinid fish, Hsianwenia wui, is reported from Pliocene lake deposits of the Qaidam Basin, characterized by an extraordinarily thick skeleton that occupied almost the entire body.
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A new pachyostotic squamate reptile from the Cenomanian of France
TL;DR: Carentonosaurus mineaui gen. et. nov. as mentioned in this paper was found in sediments of marine origin and its anatomy confirms that it was an aquatic lizard, characterized by a combination of characters that has not been reported, thus far, for squamates.
Journal ArticleDOI
Molecular phylogeny of Oreochromis (Cichlidae: Oreochromini) reveals mito-nuclear discordance and multiple colonisation of adverse aquatic environments.
Antonia G. P. Ford,Thomas R Bullen,Longson Pang,Martin J. Genner,Roger Bills,Tomas Flouri,Benjamin P. Ngatunga,Lukas Rüber,Ulrich K. Schliewen,Ole Seehausen,Asilatu Shechonge,Melanie L. J. Stiassny,George F. Turner,Julia J. Day +13 more
TL;DR: It is demonstrated that adaptation to adverse conditions has occurred multiple times within Oreochromis, but that adaptations to extreme conditions has likely arisen once in the lineage leading to O. amphimelas and Alcolapia.
Journal ArticleDOI
Biogeographic Implications of Fossil Fishes from the Awash River, Ethiopia
TL;DR: The Middle Awash fossil deposits are located within the Horn of Africa, long suggested as a possible crossing point between Africa and the Arabian Peninsula in the late Miocene and Pliocene as discussed by the authors.
Journal ArticleDOI
Hyperostosis in Three Fish Species Collected From the Sea of Oman
TL;DR: Hyperostotic conditions are described in three teleost fishes captured off the coast of Muscat City and size, shape, position, and species‐specific characteristics showed wide variation in these three species.
References
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Tumors of fishes, amphibians, and reptiles
TL;DR: Evidence of active epithelial proliferation with the formation of epithelial "pearls" and numerous mitoses is found in several species of gudgeon Gobio and in all instances they were papillomatous, and yellow-white in color.
Journal ArticleDOI
Fluoride: geochemical and ecological significance in east african waters and sediments1
Peter Kilham,Robert E. Hecky +1 more
TL;DR: The geochemistry of fluoride in East African lakes and rivers was examined to elucidate processes of fluoride acquisition, concentration, removal, and diagenesis in inland waters in a region relatively little influenced by man as discussed by the authors.
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Paleochemistry of plio-pleistocene lake Turkana, Kenya
TL;DR: The authors used the chemistry of lakes from the Eastern Rift of Africa as an analogue to the Plio-Pleistocene Lake Turkana and showed that the earliest lake phase was very fresh and continued until the end of the Kubi Algi Formation.
Journal ArticleDOI
Lake Magadi, Kenya: a model for rift valley hydrochemistry and sedimentation?
TL;DR: In this article, the authors reviewed previous studies on Lake Magadi, Kenya and the Green River Formation of Wyoming, to determine whether the latter can serve as a reference for rift valley environments and define a set of diagnostic criteria for recognizing saline alkaline lake deposits in the geologic column.
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