DOI: 10.1016/j.palaeo.2012.10.035
论文题名: Taphonomic modes on fluvial deposits of the Monte Hermoso Formation (early Pliocene), Buenos Aires province, Argentina
作者: Tomassini R.L. ; Montalvo C.I.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 369 起始页码: 282
结束页码: 294
语种: 英语
英文关键词: Argentina
; Fluvial deposits
; Monte Hermoso Formation
; Pliocene
; Taphonomic modes
; Vertebrates
英文摘要: The sedimentary deposits of the Monte Hermoso Formation, outcropping at its type locality (Farola Monte Hermoso, Buenos Aires province, Argentina), accumulated through fluvial processes acting on highly sinuous rivers. The Monte Hermoso Formation comprises a rich vertebrate fauna corresponding to the Montehermosan Stage/Age (early Pliocene), which includes numerous and diverse vertebrate remains. Comparative taphonomic analysis indicated that the faunal assemblages coming from two different fossiliferous levels, FL 1 and FL 2, recognized in floodplain deposits and channel deposits respectively, are composed of remains affected by diverse taphonomic processes and therefore representing distinct taphonomic histories. The variations recorded between both fossiliferous levels, with respect to their taphonomic attributes and sedimentary context, allowed the recognition of two distinct taphonomic modes: floodplain in the FL 1 and channel-lag in the FL 2. These taphonomic modes represent different conditions within the range of taphonomic histories for the Monte Hermoso Formation assemblage formed by attritional accumulation of remains. At the moment, continental systems linked to fluvial environments have been poorly analyzed for the South American Neogene; this study contributes new information on taphonomic and paleoenvironmental characteristics of this type of deposit. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69875
Appears in Collections: 过去全球变化的重建
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作者单位: CONICET, Departamento de Geología Universidad Nacional del Sur, San Juan 670, 8000 Bahía Blanca, Buenos Aires, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa, Avenida Uruguay 151, 6300 Santa Rosa, La Pampa, Argentina
Recommended Citation:
Tomassini R.L.,Montalvo C.I.. Taphonomic modes on fluvial deposits of the Monte Hermoso Formation (early Pliocene), Buenos Aires province, Argentina[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,369