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首页> 外文期刊>Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften: ZDGG >Palynology and palynofacies of sediments surrounding the Edmontosaurus annectens mummy at the Senckenberg Naturmuseum in Frankfurt/Main (Germany)
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Palynology and palynofacies of sediments surrounding the Edmontosaurus annectens mummy at the Senckenberg Naturmuseum in Frankfurt/Main (Germany)

机译：Edmontosaurus annectens木乃伊周围沉积物的古生物学和古相，位于法兰克福/美因河畔（德国）的Senckenberg自然博物馆

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摘要

This study presents the results of a palynological analysis of different sand-dominated sedimentary facies from the body cavity of the latest Maastrichtian Edmontosaurus annectens Marsh mummy on exhibit in the Senckenberg Naturmuseum in Frankfurt/Main, Germany. A moderately well-preserved palynological assemblage dominated by ferns (mainly Azolla; Salviniales) and other spore producing taxa, with smaller amounts of gymnosperm and angiosperm pollen, was recovered. Sparse fresh-water algae and torn and badly preserved marine dinoflagellate cysts were also recorded. The palynofacies is dominated by opaque phytoclasts, including charcoal, wood fragments and few amorphous organic matter and resin particles. However, micro-charcoal is very abundant in the sediments and represents the most common constituent among the recorded palynofacies particles. The latter supports previous findings that wildfires were a common source of disturbance in certain ecosystems during deposition of the Lance Formation in Wyoming and the contemporary Hell Creek Formation further to the North. Palynostratigraphically, the recorded palynomorphs are mostly typical of the Wodehouseia spinata Assemblage Zone, including, for example, Tricolpites microreticulatus, Leptopecopites pocockii,Liliacidites complexus, as well as Aquilapollenites among others, despite the absence of the zonal marker W. spinata. The age of this zone is Late Cretaceous (late Maastrichtian), as repeatedly assumed for the Lance Formation and its equivalent rock units. The palynoflora results indicate that the studied area was densely vegetated with a diversity of mixed plants composed of an understorey of hydrophilous ferns, mosses and herbaceous angiosperms, as well as a canopy of conifers dominated by Pinaceae and a sub-canopy of taxodioid Cupressaceae and cycads, indicative of a warm and humid climate. Moreover, the presence of algae, such as Pediastrum, together with microspores of the water fern Azolla, implies the presenc
机译：本研究介绍了在德国法兰克福/美因河畔森肯贝格自然博物馆展出的最新马斯特里赫特埃德蒙托龙沼泽木乃伊体腔中不同以沙为主的沉积相的古生物学分析结果。以蕨类植物为主的保存完好的古生物学组合（主要是Azolla;Salviniales）和其他产生孢子的分类群，以及少量的裸子植物和被子植物花粉。还记录了稀疏的淡水藻类和撕裂且保存不良的海洋甲藻囊肿。古相以不透明的植物碎屑为主，包括木炭、木材碎片和少量无定形有机物和树脂颗粒。然而，微木炭在沉积物中含量非常丰富，是记录的古相颗粒中最常见的成分。后者支持先前的研究结果，即在怀俄明州的兰斯组和更北的当代地狱溪组沉积期间，野火是某些生态系统中常见的干扰源。从地层学上看，记录的 palynomorphs 大多是 Wodehouseia spinata 组合带的典型特征，包括例如，Tricolpites microreticulatus、Leptopecopites pocockii、Liliacidites complexus 以及 Aquilapollenites 等，尽管没有地带标记 W. spinata。该区域的年龄为晚白垩世（马斯特里赫特晚期），正如兰斯组及其等效岩石单元反复假设的那样。古植物群落结果表明，研究区植被茂密，混合植物种类繁多，由亲水性蕨类植物、苔藓和草本被子植物组成，以及以松科为主的针叶树冠和紫苏亚冠层，表明气候温暖潮湿。此外，藻类（如Pediastrum）的存在以及水蕨Azolla的小孢子意味着presenc

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