Anthro meeting

From: glenn morton (mortongr@flash.net)
Date: Mon Mar 06 2000 - 16:31:49 EST

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    I have just gotten a printout of the abstracts for the Paleoanthropology
    meeting upcoming in April. Over the next few days I will be posting
    abstracts which might beof some interest. Several of the abstracts are of
    some interest to those apologetically minded people who are on this list.

    First a new level at Cueva del Castillo shows that the beginning of the
    Upper Paleolithic technology and culture took place in NEANDERTHAL Spain
    38,000 years ago. For all those apologists who thought that only modern
    humans could be creative, here is a counter example of Neandertal
    creativity. The earliest well dated anatomically modern human skeleton
    found in Europe dates from 26,000 years ago in Central Europe. Spain was
    one of the last stands of the Neanderthal around 30,000 years ago. Here is
    the Abstract.

    The beginnings of the Upper Paleolithic in Cantabria (Spain): levels 18B
    and 18C of the Cueva del Castillo

    V. Cabrera', A. Pike-Ta~ and F. Bemaldo De Quiros3
    I Departamento de Prehistoria, UniversidadNacinal de Educacion a Distancia,
    Madrid 28040
    Spain
    "Department of Anthropology, Vassar College, Poughkeepsie, NY12604
    3 Area de Prehistoria, Universidad de Leon, Leon 24071, Spain
    The Cueva del Castillo was first excavated by H. Obermaier between 1910 and
    1914. The recent excavation ofCastillo's level 18 has contributed to the
    more precise establishment of the beginnings of the Upper Paleolithic in
    the region. Several recent papers have challenged our proposition that a
    very early Aurignacian, such as that recovered from level 18, actually
    existed in Cantabria. In this paper we provide evidence confirming the
    integrity of the level and its archaeological attribution. The
    archaeological integrity of level 18 is demonstrated by the fact that it is
    separated from two other find-bearing strata -level 16 with Aurignacian
    lhaterials above, and Mousterian level 20 below- by archaeologically
    sterile levels 17 and 19. Geologically, layer 18 is situated between two
    periods of rock fall. Chronologically, all of level 18 is attributed to
    38,000 to 40,000 BP on the basis ofAMS and ESR determinations from three
    different laboratories. The recent excavations have subdivided level 18.
    Lowermost level 18C has yielded nosed endscrapers, dihedral burins,
    Aurignacian blades, bladelets, and simple sidescrapers. In addition,
    decorated bones and a sagaie point have been found in 18C. Uppermost level
    18B displays similar technological characteristics, though with
    finer-quality endscrapers and the presence of an atypical and isolated
    Chatelperronian point. Five operational chains have been identified; three
    for obtaining flakes and two for blades. In sum, the Middle Paleolithic
    "look" of the assemblage, combined with an Upper Paleolithic class of
    blades, leads us to propose that this is a transitional level. Faunal
    analyses from the recent excavations of level 18 demonstrate an emphasis on
    red deer. The population structure and reconstructed hunting patterns for
    the prey animals of 18C are very similar to those reconstructed for the
    Mousterian faunas, again corroborating the transitional nature of this
    Aurignacian level." Abstracts for the Paleoanthropology Society Meeting,
    The University of Pennsylvania Museum, Philadelphia, Pennsylvania, U.S.A.,
    April 4-5, 2000
    **

    Also there are some interesting similarities between a Homo erectus brain
    discovered in 1997 with modern humans. Here is the abstract:

    The endocast of Sambungmachan 3 (SM-3): a new Homo erectus from Java
    Douglas C. Broadfield''2'3 Ralph L. Hollowa~'4, Kenneth Mowbray~6, Michael
    Yuan3'4
    Adam Silvers', Jeffrey T. Laitman''2'3 and Samuel Marquez''2J
    ' Department of Cell Biology & Anatomy, Mount Sinai School of Medicine, New
    York, NY 10029
    ' Ph.D. Program in Anthropology, CUNY Graduate Center, New York, NY 10016
    3NYCEP (New York Consortium in Evolutionary Primatology)
    ~Departmentt of Anthropology, Columbia University, New York, NY 10027
    "Department of Anthropology, American Museum of Natural History, New York,
    NY10024
    ~Department ofAnthropology, Rutgers University, NewBrunswick, NJ 08903
    7Department of Radiology, Mount Sinai Hospital, New York, NY 10029

    The taxon Homo erectus occupies a considerable timeframe in hominid
    evolution. Accordingly, variations or changes in their paleoneurology may
    be of great value in interpreting brain evolution. Indonesian H. erectus is
    characterized by a long, low cranial vault, sloping forehead, and angled
    occipital region. These features are reflected on the endocasts, which
    range in size from 813cc to 1059cc. While we can witness the increase in
    brain volume in H. erectus over the course of a million years or more,
    there has been little evidence of the development of modern Homo-like
    traits in their endocasts. The endocast of a new calvaria discovered near
    Sambungmachan, Java, however, offers evidence suggesting the appearance of
    more modem characteristics in H. erectus.
            "A rhodorsil silicon rubber endocast was made from the Sambungmachan 3
    calvaria (SM-3), and the base of the endocast was reconstructed so that an
    accurate endocranial volume could be obtained. Water displacement
    techniques yielded an average cranial capacity of920cc. In addition, CT
    imaging was performed on SM-3 along with 4 other representative Indonesian
    and Chinese endocasts using helical fast tract scanning (mA = 140, kV =
    170, I mm slice intervals), generating 2-D and 3-D reconstructions.
    Frontal, temporal, and parietal-occipital lobes were quantified using
    tracing techniques for each incremental slice based on neuroanatomical
    landmarks. Our preliminary comparative paleoneurological analyses shows
    that while SM-3 has a mosaic of features that are similar to both
    Indonesian and Chinese H. erectus, it also possesses significant apomorphic
    features. These include a greater degree of asymmetry characterized by a
    strong left-occipital, right-frontal petalial pattern; left- right
    volumetric asymmetry exhibited in the frontal and parieto-occipital lobes;
    and significant asymmetry in Broca's cap. Moreover, the frontal lobe offers
    a more shortened, rounded appearance in contrast to the flat, elongated
    appearance of other Indonesian fossils (e.g., Sangiran 17). Another
    apomorphic trait is exhibited in the transverse plane where the widest
    breadth of SM-3 occurs more superiorly than in other Indonesian H. erectus.
            "The endocast of SM-3 presents a unique morphology not seen previously in
    the fossil record. While the strong modem human characteristics in this
    endocast may not represent a particular ancestry, they do allow us to
    recognize a new dimension of the remarkable variation in Indonesian Homo
    erectus."

    glenn

    Foundation, Fall and Flood
    Adam, Apes and Anthropology
    http://www.flash.net/~mortongr/dmd.htm

    Lots of information on creation/evolution



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