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With only 5 species in 2 families known to modern man, you might be surprised to learn that the four extant species represent only a small fraction of the sirenians found in the fossil record. ... Prior to the Cenozoic, there were the Paleozoic Era (age of the inverts, fishes, & amphibians) and the Mesozoic Era (age of...
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www.sirenian.org/sirenianevolution.pdf
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The Cenozoic Era is short, ... they were extinct by the end of the Pliocene representing the last sirenians in the European-North African segment of the former Tethyan realm (Domning 1982). Large shark fossils (Carcharodon megalodon) are found almost exclusively in association with M. serresii bones in the Sahabi...
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www.sirenian.org/sirenianevolution.html
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David Bohaska holds a fossil Carcharodon shark tooth found at Calvert Cliffs, Maryland, one of tens of thousands fossil shark teeth in the Museum's collection. ... Robert Purdy holds the upper half of a skull from an Ice Age-era horse. Using the museum specimens Bob was able to show the evolution of the horse over the last...
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www.nmnh.si.edu/rtp/students/2006/schedule06_paleobiolo...
www.nmnh.si.edu/rtp/students/2006/schedule06_paleobiology_tour_photo3.html
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Toward the end of the Paleozoic era, ... Indeed, the official Georgia state fossil is the tooth of the giant fossil shark, Carcharocles (formerly Carcharodon) megalodon. Also found are the remains of an ancient whale, which still retains remnants of hind legs from the time when the whale's ancestors lived on land.
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www.georgiaencyclopedia.org/nge/ArticlePrintable.jsp?id...
www.georgiaencyclopedia.org/nge/ArticlePrintable.jsp?id=h-1159
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The rocks of the next overlying system, called the “Takaka system,”† are found chiefly in the valley of the Aorere River, ... We are also quite as ignorant of what was taking place in our part of the world during the older Palæozoic era, further than that the fossils of the Siluro-devonian rocks seem to imply a...
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rsnz.natlib.govt.nz/journals/rsnz/volume/rsnz_32/rsnz_3...
rsnz.natlib.govt.nz/journals/rsnz/volume/rsnz_32/rsnz_32_00_003230.html
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He noted that he had also found two Carcharodon carcharias teeth in the 2.5 inch range, a nice Squalodon canine, and a good mix of other teeth. The big meg that weekend with the broken tip was found by another DVPS member, Bob Gibbs. ... Weekend 3 -- The Dawn of a New Era To a lucky group of 50-or-so collectors,
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www.elasmo.com/leecreek/other_pg/news9803.html
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Introduction The white shark, Carcharodon carcharias, is typically found in cold and warm-temperate waters throughout the world, although occurrences in tropical waters have been documented (Compagno, 1984). In the western North Atlantic Ocean, the species is most commonly encountered in continental shelf waters from Cape ...
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www.allbusiness.com/agriculture-forestry/fishing-huntin...
www.allbusiness.com/agriculture-forestry/fishing-hunting-trapping-finfish/483807-1.html
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