Presencia de Stegomastodon (Gomphotheriidae, Proboscidea) en el Pleistoceno Superior de la zona costera de Santa Clara del Mar (Argentina)
Presencia de Stegomastodon (Gomphotheriidae, Proboscidea) en el Pleistoceno Superior de la zona costera de Santa Clara del Mar (Argentina)
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Presencia de Stegomastodon (Gomphotheriidae, Proboscidea) en el Pleistoceno Superior de la zona costera de Santa Clara del Mar（阿根廷）
DOI：
10.3989/egeol.08642.044
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发表时间：
2008
影响因子：
0.7
通讯作者：
J. L. Prado
中科院分区：
文献类型：
--
作者：
M. T. Alberdi;J. L. Prado
描述了阿根廷马德普拉塔圣克拉拉德尔马海岸线上的Gomphtheriidae化石遗骸。通过对M3与其他主要来自阿根廷、玻利维亚和巴西的南美Gomoptheres遗骸的比较形态和多变量分析，可以将它们鉴定为Stegomastodon Platsis。本种似乎更适应生活在中纬度和温暖的气候条件。讨论了从北部到最南端地区的可能运动路线。南美洲的剑齿龙是一种体型较大的物种，存在于东线以及厄瓜多尔和秘鲁的几个海岸地区。在这项工作中，包括了一些古生态和古地理方面的考虑。根据放射性AMS数据，圣克拉拉德尔马的遗骸年代为晚更新世(17880±60ap)。
Gomphotheriidae fossil remains from shore level of Santa Clara del Mar (Mar del Plata, Argentina) are described. The comparative morphological and multivariate analysis of the m3 with other South American gomphotheres remains, mainly from Argentina, Bolivia and Brazil, allow their identification as Stegomastodon platensis . This species seems better adapted to live on the middle latitudes and warm climatic conditions. The possible movement routes from north to the most austral zones or areas are discussed. Stegomastodon from South America is a big-size form which is present along the East route and in several shore areas of Ecuador and Peru. In the present work some palaeoecological and palaeogeographical considerations are included. From a radiometric AMS datum, the remains of Santa Clara del Mar are dated in the late Pleistocene (17,880 ± 60 AP).