By Felix G. Marx, Olivier Lambert, Mark D. Uhen
Cetaceans (whales, dolphins, and porpoises) have interested and bewildered people all through background. Their mammalian affinities were lengthy famous, yet precisely which workforce of terrestrial mammals they descend from has, till lately, remained in the dead of night. contemporary many years have produced a flurry of latest fossil cetaceans, extending their fossil heritage to over 50 million years in the past. in addition to new insights from genetics and developmental reports, those discoveries have helped to elucidate where of cetaceans between mammals, and enriched our realizing in their special variations for feeding, locomotion and sensory structures. Their continually enhancing fossil list and successive transformation into hugely really expert marine mammals have made cetaceans a textbook case of evolution - as iconic in its personal means because the beginning of birds from dinosaurs. This e-book goals to summarize our present knowing of cetacean evolution for the intense pupil and novice utilizing images, drawings, charts and illustrations.
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2012. First evidence of Remingtonocetidae (Mammalia, Cetacea) outside Indo‐Pakistan: new genus from the early Middle Eocene of Egypt. Journal of Vertebrate Paleontology: Program and Abstracts, 62. Bianucci, G. 2013. Septidelphis morii, n. gen. , from the Pliocene of Italy: new evidence of the explosive radiation of true dolphins (Odontoceti, Delphinidae). Journal of Vertebrate Paleontology 33:722–740. , O. Lambert, and K. Post. 2007. A high diversity in fossil beaked whales (Mammalia, Odontoceti, Ziphiidae) recovered by trawling from the sea floor off South Africa.
Egypt 27 30 33 43 45 45 47 49 Basilosaurus 51 53 55 fossil is indeed close to the actual time of origin of the group (Gingerich and Uhen, 1998). , 2011). Second, better knowledge of the cetacean fossil record has made it increasingly hard to dis cover previously unknown genera. Since 1820, the number of fossil cetacean genera has grown steadily by about 20 genera per decade. 10). 9 The age of the oldest cetacean fossil over historical time, along with a measure of how much the oldest fossil age might underestimate the actual origin of whales.
Nature Communications 5:4818. Ehret, D. , B. J. Macfadden, D. S. Jones, T. J. Devries, D. A. Foster, and R. Salas‐Gismondi. 2012. Origin of the white shark Carcharodon (Lamniformes: Lamnidae) based on recalibration of the Upper Neogene Pisco Formation of Peru. Palaeontology 55:1139–1153. Emlong, D. R. 1966. A new archaic cetacean from the Oligocene of northwest Oregon. Bulletin of R eferences 37 the Oregon University Museum of Natural History 3:1–51. , L. Brand, K. E. Nick, O. Poma, and M. Urbina.
Cetacean Paleobiology by Felix G. Marx, Olivier Lambert, Mark D. Uhen