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754 results found.
76 pages of results. 71. Pterodactyls in the Mesozoic: A Flap in Time [Journals] [Aeon]
... that also indicated elevated levels of available carbon dioxide to stimulate plant growth, as well as the development of shell-like outer coverings of invertebrate lifeforms such as the early molluscs. The subsequent Cenozoic Era was the Age of Mammals, in spite of traces of mammalian existence as far back as the Late Permian or Early Triassic; and, whatwith the extinction of the dinosaurs at the close of the Cretaceous, the door opened wide for the advance and development of these furry viviparous animals. What's in a Name Velociraptor, which, despite Steven Spielberg's entertaining accuracy of dinosaurs, did not thrive during the Jurassic but in the Late Cretaceous. (Illustration by Bob Giuliani.) The term dinosaur ...
72. Agate Spring Quarry. Ch.5 Tidal Wave (Earth In Upheaval) [Velikovsky] [Velikovsky Earth in Upheaval]
... American Museum of Natural History in New York. This block contains about 100 bones to the square foot. There is no way of explaining such an aggregation of fossils as a natural death retreat of animals of various genera. The animals found there were mammals. The most numerous was the small twin-horned rhinoceros (Diceratherium). There was another extinct animal (Moropus) with a head not unlike that of a horse but with heavy legs and claws like those of a carnivorous animal; and bones of a giant swine that stood six feet high (Dinohyus hollandi) were also unearthed. The Carnegie Museum, which likewise excavated in Agate Spring Quarry, in a space of 1350 square ...
73. Fossil Deposits [Books] [de Grazia books]
... next chapters. What explains the distribution of fossil remains of life, particularly the large number of fossil clusters involving different species? A fossil generally connotes an individual, a herd, or a general disaster. The greater the confusion of species, the more likely an exoterrestrial catastrophe. Given the increase in studies demonstrating an exoterrestrial connection with general extinctions, can natural history be reordered according to the occurrence, frequency, and type of exoterrestrial disaster? And is large-scale extinction possibly or invariably accompanied by large-scale biological innovation? Sounds and sights are ordinarily excluded from natural historiography, because they do not linger and one can no longer find their remains. However, we ask two kinds of ...
74. The Exo-Synchronous Molecular Evolutionary Clock [Journals] [SIS Workshop]
... size and direction being a function of the characteristics and degree of severity of the episode and thus explain why physiological evolution does not have the clocklike effect of DNA evolution. The effects of the upsets would come into play by natural selection during the relatively benign time between these events. The degree and selectiveness of the destruction of life and of extinction of species caused by the upsets would affect the subsequent competition which would be faced by different species, both surviving and new. The type and degree of change to the physical environment would also affect this same competition. The world-wide effect of an episode, especially of the weaker ones, would not necessarily tend to be uniform geographically by ...
75. Radioactive Fossil Bones (Comments) [Journals] [Catastrophist Geology]
... possible effects of supernovae in the vicinity of the solar system. These would have destroyed the ozone layer and allowed solar ultraviolet radiation to reach the base of the atmosphere relatively unimpeded. A wave of high energy particles could increase background radiation at ground level by some 5,000 times or more. This combination of stresses might have produced the extinctions at the end of the age of reptiles, while being "mild" enough, from the point of view of their climatic effects, to have permitted the survival of small animals in fresh water streams, which depend largely on nutrients derived from land plants. Nearby supernovae are very rare events, and would occur at lethal distances on ...
76. Darwin. Ch.2 To Know And Not To Know (Mankind in Amnesia) [Velikovsky]
... passages in Earth in Upheaval): "It is impossible to reflect on the changed state of the American continent without the deepest astonishment. Formerly it must have swarmed with great monsters: now we find mere pigmies, compared with the antecedent, allied races." He continued: "The greater number, if not all, of these extinct quadrupeds lived at a late period, and were the contemporaries of most of the existing sea-shells. Since they lived, no very great change in the form of the land can have taken place. What, then, has exterminated so many species and whole genera? The mind at first is irresistibly hurried into the belief of some great ...
77. Monitor [Journals] [SIS Workshop]
... through our galaxy. A further refinement of this theory is the authors' "supernova" theory. McCrea et al have published a number of papers in recent years attributing the demise of the dinosaurs to an eruption of a supernova: in this paper we find them giving I. Shklovsky credit for his suggestion some 20 years ago that the extinction of the dinosaurs may have been caused by a nearby supernova. Comets are discussed as "close encounters of the third kind", where Lambert and Ralph Glaber get a mention. The idea that life on Earth may have started 4000 million years ago with a collision with a comet (Hoyle & Wickramasinghe theory) is also brought into ...
... is that the Capture Flood, rushing over the tropical belt, flung the animals where they are found. The lacustrine forms are not so very different from the marine forms as to force us to suppose the Great Flood, the flowing off of the girdle-tide, responsible for this distribution. There are two types of volcano: active, and extinct. The latter type again may be subdivided into two classes: long extinct, and recently extinct. The long extinct ones are those whose ruinous cones date from the closing period of the Tertiary Age, when the conditions during and immediately after the breakdown made volcanic activity run very high. (At that time there also formed the great ...
79. Monitor [Journals] [SIS Workshop]
... " Nemesis, a postulated companion to our Sun, whose interaction with the Oort cloud of comets might cause periodic havoc in the Solar System. Now NATURE seems to have backed down on the idea. New calculations show that the orbit of Nemesis would not be stable, the cometary orbits do not fit, and the palaeontological record of major extinctions does not show the right periodicity! Another Iridium Extinction source: SCIENCE 226, p.437 Yet another anomalously high concentration of iridium has been found - in sedimentary rocks of the Canning Basin in NW Australia, dated to c.365 Myr ago and coinciding with a major extinction horizon at the boundary between the Frasnian and Famennian ages ...
... North American Continent with its schists, clays and old red sandstone corresponds (Suess continues) with the same regions of the Old World. That there was a land link at some former time is proved by the fauna and flora. The mammoth, the musk-ox, the elk, the red deer, and many other species of mammals now extinct, or found only in one continent, were formerly common to both. The question is what circumstances combined to cause the musk-ox and Irish elk to become extinct in Europe, the mammoth on both sides, "the simultaneous disappearance over vast areas of whole communities," to quote Suess? The frozen body of an antelope has been ...
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