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76 pages of results. 31. The SIS Evolution Debate Continued [Journals] [SIS Review]
... catastrophic periods of mutation'. His comments on the role of ecological niches were taken up by David Salkeld and formed the basis for a Forum' section in Workshop 1990:1 , pp. 14-15, together with Trevor's response. In turn, this brought a response from Jill, including her postulate of a different process' following mass extinctions, which was printed in another Forum' section (Workshop 1990:2 , pp. 24-25) together with Trevor's carefully weighted reply. The following four contributions continue that debate. The Creative Urge in Evolution?It seems to me that the basis for disagreement between Jill and Trevor is their differing philosophies, with Jill advocating full-blooded catastrophism ...
32. Fossils In Florida. Ch.10 Thirty-five Centuries Ago (Earth In Upheaval) [Velikovsky] [Velikovsky Earth in Upheaval]
... From "Earth in Upheaval" © 1955 by Immanuel Velikovsky | FULL TEXT NOT AVAILABLE Contents Fossils In Florida On the Atlantic coast of Florida, at Vero in the Indian River region, in 1915 and 1916, human remains were found in association with the bones of Ice Age (Pleistocene) animals, many of which either became extinct, like the sabre-toothed tiger, or have disappeared from the Americas, like the camel. The find caused immediate excitement among geologists and anthropologists. Beside the human bones pottery was found, as well as bone implements and worked stone. Ales Hrdlicka, of the Smithsonian Institution of Washington, D.C ., a renowned anthropologist (who ...
33. Prehistory and Earth Models [Books]
... . The Darwinian view of evolution sees all changes in organic form as adaptive changes, but the students of evolutionary change, the palaeontologists, have often been very hesitant to accept such a view. Many have voiced the opinion that in certain cases evolution appears to be non-adaptational, and have generally added that it is directional, maybe leading to extinction. There is a large and familiar literature supporting such views, some in an extreme form. It is however equally clear to any student of past or living forms that much evolution has been of an adaptive nature, and the plain fact seems to be that changes in organic form may be adaptational or not, and still persist. ...
34. Evidence of An Inversion Event? [Journals] [Aeon]
... may be interpreted in a manner to satisfy the above prerequisites. This interval is the transition from the Pleistocene Epoch to the Holocene Epoch. In summary, the principal evidence is as follows: (1 ) It has been explained how an inversion event would be particularly destructive to large animals. The Pleistocene-Holocene transition is noteworthy with regard to the extinction of large land mammals. In terms of genera, it is estimated that North America lost 73% of its large mammals at this time, while South America lost 80%. Further, numerous genera of large mammals disappeared from Eurasia, some of which had been very plentiful during the late Pleistocene. In contrast, there were relatively ...
35. Catastrophic Events & Mass Extinctions [Journals] [SIS Internet Digest]
... From: SIS Internet Digest 1999:1 (Apr 1999) Home | Issue Contents Catastrophic Events & Mass Extinctions Tue, 30 Mar 1999 From Ron Baalke <BAALKE@kelvin.jpl.nasa.gov> Catastrophic Events & Mass Extinctions: Impacts And Beyond. July 9-12, 2000 Vienna, Austria http://cass.jsc.nasa.gov/meetings/impact2000/ This conference will be the fourth of an informal series of meetings on mass extinctions, global catastrophes, geological (and biological) implications of impact events, and related investigations, which were initially held at Snowbird, Utah, to discuss studies of the Cretaceous-Tertiary (K-T) boundary. The ...
36. Punctuated Darwinism? [Journals] [SIS Workshop]
... From: SIS Chronology and Catastrophism Workshop 1989 No 1 (May 1989) Home | Issue Contents Punctuated Darwinism?by Jill Abery Natural selection, the architect of stasis and extinction Darwin's theory of the origin of new species by the natural selection of small variations has received much just and detailed criticism in recent years. Even the discovery of the mechanism of inheritance and the subsequent development of the science of genetics, which at first appeared to give Darwinism a solid foundation, has not come up with any proof that it is possible to change one species into another. Rather, it would seem to indicate that the role of natural selection is to weed out any individuals which vary ...
37. The Cautious Revolutionary [Journals] [SIS Review]
... Bahamas, with the theory of punctuated equilibrium [3 ]. Together with Niles Eldredge of the American Museum of Natural History, Gould has argued since 1972 that punctuational change dominates the history of life: evolution is concentrated in very rapid events of speciation, with a long period of stasis occurring between the formation of a species and its subsequent extinction [4 ]. A conference on punctuated equilibrium held at Chicago in 1980 has been described by participants, including the respected Birmingham geologist, Tony Hallam, as a turning point in the history of evolutionary theory [5 ]. Gould was named Discover magazine's scientist of the year in 1982. Gould is fully aware that claims about science ...
38. Focus [Journals] [SIS Workshop]
... Incredible though it might seem, these are the words of John Maddox, printed in that erstwhile paragon of orthodox uniformitarianism - NATURE.(1 ) The edifice of the modern scientific establishment has been subjected to a succession of minor seismic disturbances over the past few years. The Alvarez theory of asteroid impact to explain the Cretaceous/Tertiary boundary extinction (see SISW 3:4 , pp.l6-17) was succeeded by grander ideas of cometary encounters (see SISW 5:1 , pp.30-31). Then in May 1983 the geological meeting at the Dahlem conference showed a strong bias towards extraterrestrially caused catastrophism (see SISW 5:4 , pp.26-27). At ...
39. Carbon Dioxide Production by K-T Extinction Bolide [Journals] [Catastrophism & Ancient History]
... From: Catastrophism and Ancient History X:2 (July 1988) Home | Issue Contents INTERACTION Carbon Dioxide Production by K-T Extinction Bolide John D. O'Keefe and Thomas J. Ahrens The occurrence of both shocked quartz grains at the K-T boundary, [1 ] a low- possibly oceanic- affinity 87Sr/86Sr ratio, [2 ,3 ] and the fact that sea level at the end of Cretaceous was some 300 m higher than at present, suggests the possibility that the impact of the K-T extinction bolide occurred on a shallow marine- probably carbonate-rich- sedimentary section. Fig. 1. Fraction of CO2 released in calcite as a function of impact pressure (Lange ...
40. Neocatastrophism? [Journals] [Catastrophist Geology]
... a regression to the long-discredited ideas of Cuvier and his time. A re-examination of the issues has yielded the result that at the turning points of the great geological eras, and to a lesser extent at the boundaries of formations, there have occurred fundamental changes in the composition of the animal world, produced by the massive andmore or less simultaneous extinction of numerous stocks and the appearance of new ones. This universal phenomenon must be regarded as a reality, and its causal interpretation requires postulating factors that are universally active. An admissible interpretation may be seen in the effects of influxes of high-energy cosmic radiation. 1. Introduction D.L . Stepanov (1959a) has bestowed on me ...
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