globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2014.11.003
论文题名:
Ostracods, plant tissues, and other inclusions in coprolites from the Late Cretaceous Lameta Formation at Pisdura, India: Taphonomical and palaeoecological implications
作者: Khosla A.; Chin K.; Alimohammadin H.; Dutta D.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 418
起始页码: 90
结束页码: 100
语种: 英语
英文关键词: Coprolites ; Late Cretaceous ; Ostracods ; Palaeoecology ; Plant tissues
英文摘要: A rich microbiota with distinctive plant fossils has been discovered in Type A morphotype coprolites from the Lameta Formation of Pisdura, in Maharashtra, India. Macerated fractions examined with scanning electron microscopy revealed seven ostracod taxa, (. ?Mongolianella sp., Cypridea (. Pseudocypridina) sp., Cypridopsis sp., Eucypris sp., Gomphocythere sp., Gomphocythere paucisulcatus, and Paracypretta sp.), diatoms (. Aulacoseira sp.), a charophyte (. Microchara sp.), and sponge spicules. Abundant probable chrysophytes were also observed in thin sections of one of the coprolites. Most of the plant debris is unidentifiable, but recognizable tissues include gymnosperm tissues, a spore, cuticle, and leaf laminae replaced with silica. Chemical analyses reveal that the coprolites are phosphatic, with ~. 12.2 to 16.2. wt.% phosphorus. The microfossils support a Maastrichtian age and fluvio-lacustrine depositional conditions for the Lameta Formation at Pisdura. The unusual combination of a phosphatic composition with plant and microfossil dietary residues suggests that the ancient faecal producers were intentional or inadvertent omnivores. © 2014 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69061
Appears in Collections:过去全球变化的重建

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作者单位: Centre of Advanced Study in Geology, Panjab University, Sector-14, Chandigarh, India; Department of Geological Sciences and Museum of Natural History, University of Colorado, UCB 265, Boulder, CO, United States; Environmental and Palaeomagnetic Laboratory, Geological Survey of Iran, Meraj Ave., Azadi Sq., Tehran, Iran; Department of Geology, Lucknow University, Lucknow, India

Recommended Citation:
Khosla A.,Chin K.,Alimohammadin H.,et al. Ostracods, plant tissues, and other inclusions in coprolites from the Late Cretaceous Lameta Formation at Pisdura, India: Taphonomical and palaeoecological implications[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,418
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