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  • 1
    Online-Ressource
    Online-Ressource
    A Fossil Snake with Limbs
    American Association for the Advancement of Science (AAAS) ; 2000
    In:  Science Vol. 287, No. 5460 ( 2000-03-17), p. 2010-2012
    Details
    In: Science, American Association for the Advancement of Science (AAAS), Vol. 287, No. 5460 ( 2000-03-17), p. 2010-2012
    Kurzfassung: A 95-million-year-old fossil snake from the Middle East documents the most extreme hindlimb development of any known member of that group, as it preserves the tibia, fibula, tarsals, metatarsals, and phalanges. It is more complete than Pachyrhachis , a second fossil snake with hindlimbs that was recently portrayed to be basal to all other snakes. Phylogenetic analysis of the relationships of the new taxon, as well as reanalysis of Pachyrhachis , shows both to be related to macrostomatans, a group that includes relatively advanced snakes such as pythons, boas, and colubroids to the exclusion of more primitive snakes such as blindsnakes and pipesnakes.
    Materialart: Online-Ressource
    ISSN: 0036-8075 , 1095-9203
    URL: Article
    DOI: 10.1126/science.287.5460.2010
    RVK:
    TA 1000
    RVK:
    WA 15000
    Sprache: Englisch
    Verlag: American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2000
    ZDB Id: 128410-1
    ZDB Id: 2066996-3
    ZDB Id: 2060783-0
    SSG: 11
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Online-Ressource
  • 2
    Online-Ressource
    Online-Ressource
    Paleolithic Population Growth Pulses Evidenced by Small Animal Exploitation
    American Association for the Advancement of Science (AAAS) ; 1999
    In:  Science Vol. 283, No. 5399 ( 1999-01-08), p. 190-194
    Details
    In: Science, American Association for the Advancement of Science (AAAS), Vol. 283, No. 5399 ( 1999-01-08), p. 190-194
    Kurzfassung: Variations in small game hunting along the northern and eastern rims of the Mediterranean Sea and results from predator-prey simulation modeling indicate that human population densities increased abruptly during the late Middle Paleolithic and again during the Upper and Epi-Paleolithic periods. The demographic pulses are evidenced by increasing reliance on agile, fast-reproducing partridges, hares, and rabbits at the expense of slow-reproducing but easily caught tortoises and marine shellfish and, concurrently, climate-independent size diminution in tortoises and shellfish. The results indicate that human populations of the early Middle Paleolithic were exceptionally small and highly dispersed.
    Materialart: Online-Ressource
    ISSN: 0036-8075 , 1095-9203
    URL: Article
    DOI: 10.1126/science.283.5399.190
    RVK:
    TA 1000
    RVK:
    WA 15000
    Sprache: Englisch
    Verlag: American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 1999
    ZDB Id: 128410-1
    ZDB Id: 2066996-3
    ZDB Id: 2060783-0
    SSG: 11
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Online-Ressource
  • 3
    Online-Ressource
    Online-Ressource
    Pleistocene Milestones on the Out-of-Africa Corridor at Gesher Benot Ya'aqov, Israel
    American Association for the Advancement of Science (AAAS) ; 2000
    In:  Science Vol. 289, No. 5481 ( 2000-08-11), p. 944-947
    Details
    In: Science, American Association for the Advancement of Science (AAAS), Vol. 289, No. 5481 ( 2000-08-11), p. 944-947
    Kurzfassung: The Acheulean site of Gesher Benot Ya'aqov in the Dead Sea Rift of Israel documents hominin movements and technological development on a corridor between Africa and Eurasia. New age data place the site at 780,000 years ago (oxygen isotope stage 19), considerably older than previous estimates. The archaeological data from the site portray strong affinities with African stone tool traditions. The findings also reflect adroit technical skills and in-depth planning abilities, more advanced and complex than those of earlier archaeological occurrences in the Levant.
    Materialart: Online-Ressource
    ISSN: 0036-8075 , 1095-9203
    URL: Article
    DOI: 10.1126/science.289.5481.944
    RVK:
    TA 1000
    RVK:
    WA 15000
    Sprache: Englisch
    Verlag: American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2000
    ZDB Id: 128410-1
    ZDB Id: 2066996-3
    ZDB Id: 2060783-0
    SSG: 11
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Online-Ressource
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