全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

Paleobiogeografía del arribo de mamíferos suramericanos al sur de América Central de previo al gran intercambio biótico americano: un vistazo al GABI en América Central

Keywords: early hemphillian, central america, herald mammals, xenarthrans, pliometanastes, scirrotherium, trionychidae, gabi, costa rica, central america.

Full-Text   Cite this paper   Add to My Lib

Abstract:

in reference to the discovery of new fossil xenarthrans that was made in the curré formation, a paleobiogeographical analysis of the early hemphillian age vertebrates will be made for the fossiliferous location of san gerardo de limoncito in southern costa rica. this vertebrate locality has a mixture is mainly formed by vertebrates from the palearctic, nearctic and neotropical regions and it records the early arrival of south american mammals to the southern central america region, not known until now. the arrival of south american mammals to the panama region was due to a series of factors such as the development of the costa rica-panamá island arc by subduction processes, the collision and the deformation of the island arc with the north-western colombia territories and the prevailing climate factors which stimulated the predominance of warm, humid and basal forests, both in colombia and in southern central america. this permitted the xenarthrans, which are considered strong swimmers and islands hoppers to migrate to the north. these conditions on the other hand, limited the migration to the south of the north american mammals, whose arrival in south america was postponed until the blancan age with drier climatic conditions and the new land corridor that was established in the region. additionally, the current state of the great american biotic interchange in central america (gabi) is analyzed

Full-Text

comments powered by Disqus

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133

WeChat 1538708413