The Geological Museum of China

Beijing, China

The Geological Museum of China

Beijing, China
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Cheng Y.-M.,The Geological Museum of China | Yang X.-N.,The Geological Museum of China
Historical Biology | Year: 2017

A new genus and species of Cretaceous Cyatheacean tree fern, Heilongjiangcaulis keshanensis gen. et sp. nov., is erected for several permineralized stems collected at the Keshan County in Songliao Basin, Heilongjiang Province, Northeast China. The new taxon is characterized by a dictyostelic, erect stem with dense multicellular scales and surrounded by persistent petiole bases and adventitious roots. The stem contains a central pith lacking medullary bundles, which is surrounded by a dictyostele, and the cortex externally. Each meristele of the dictyostelic ring is enclosed by a sclerenchyma sheath. The pith and cortex are parenchymatous. The proximal petiole bases present a frond trace composed of numerous meristeles, arranged in 1 abaxial and 2 adaxial arcs, with internally projecting bundles on the upper and lateral sides. The feature combination of the new genus is nearly identical to the anatomical structures of modern scaly genera of the Cyatheaceae apart from the absence of medullary bundles. It is interpreted as a primitive representative of early Cyatheaceae, that closely resembles the modern scaly genera, which suggests that in the Cretaceous, the tree ferns in this family were already in possession of most of the anatomical characteristics observed in extant taxa. The fossil records of the stems, petioles, and spores indicate that during the Jurassic and Cretaceous, the Northeastern region of Asia may have been one of the distribution centers of early Cyatheaceae. © 2017 Informa UK Limited, trading as Taylor & Francis Group


Gao X.-R.,The Geological Museum of China | Yang L.-F.,The Geological Museum of China | Li Q.,Guoshu Technical Beijing Co. | Lu L.-S.,The Geological Museum of China
Acta Geoscientica Sinica | Year: 2017

According to the current situation and existing problems concerning the application innovation of the gem identification exhibition system, in combination with gemological own characteristics and special nature of the exhibited items, and in consideration of the experience of public demand, the authors introduced the knowledge of the gem identification to the development of concrete demonstration system through the modern industrial integration technology, with reproduction of important steps and related phenomena of the gem recognition method to the public visitors. On such a basis, by solving the problem of integrated application of technological innovation, the integrated system based on non-contact detection technology and stepping motor control technology was formed. Innovative research solutions of the key technology application are presented, which provide new design ideas and development examples for display carrier of the gem identification. © 2017, Science Press. All right reserved.


Zhang X.-H.,The Geological Museum of China
Acta Geoscientica Sinica | Year: 2017

In recent years mineral crystals have been collected by more and more people in China. Because of its vibrant color, brilliant natural luster and incredible sculptural qualities, realgar crystal is popular for geological museums and private mineral collectors. However, when exposed to sunlight, unprotected realgar develops a surface coating of friable yellow material. Due to their photochemical sensitivity, arsenic chalcogenides are important materials for use in optics. A lot of research work on light induced alteration of realgar was carried out in foreign countries. Reaction products of realgar and light are pararealgar, arsenolite and χ-phase. Realgar is indirectly transformed into pararealgar via the As4S5 molecule. Realgar is a kind of Chinese traditional medicine, but the As2O3 in realgar is toxic. The content of As2O3 in realgar is related to such factors as high temperature and light. A lot of research work on composition of realgar as Chinese traditional medicine has been carried out, but the study of light induced alteration of realgar should be strengthened in China. © 2017, Science Press. All right reserved.


Tan K.,The Geological Museum of China
Acta Geoscientica Sinica | Year: 2017

Two specimens were discovered at the top of Tupo Formation (Late Namurian, Carboniferous) in Zhongwei city, Ningxia Hui Autonomous Region. Their bodies are long and thin with few scales. The hyomandibular is slightly oblique and extends from the middle of the parietal to the end of bigonial arch. The maxillary is faint hilt-shaped. The opercular is as big as subopercular. The orbital is large and far forward. The median fin-rays are segmented and branched. The dorsal lobe of the tail becomes reduced to an abbreviated heterocercal tail. In general, the two specimens possess many more remarkable characteristics in the process of evolution from the chondrosteans to the holosteians. So a new genus is proposed to create in Palaeonisciformes for the two specimens, and more specimens are needed to help us find out which family should the new genus belong to. © 2017, Science Press. All right reserved.


Wang L.-X.,The Geological Museum of China
Acta Geoscientica Sinica | Year: 2017

'Internet +' represents a new form of economic development, which can optimize factors of production by internet and make an advanced conjunction between information technology and social economy. It can also remarkably promote creativity and prolificacy. With the development of fossil protection work, 'Internet +' can be also applied in this field the digital fossil technique, for example, makes it possible for modern information technology to serve paleontological research, popular science and fossil protection. This paper discusses the technological and administrative problems of application of 'Internet +' in fossil protection, suggests constructing a digital platform which collects information of important fossil sites and specimens, and predicts the prospect of further developments in research, popular science and fossil protection. © 2017, Science Press. All right reserved.


Liu Z.,The Geological Museum of China
Acta Geoscientica Sinica | Year: 2017

Orsten-type fossils are mainly tiny arthropods whose soft-body is preserved by the impregnation of their cuticle with phosphate. The Orsten-type material is quite unusual because the imbedding animals are preserved in three dimensions instead of being flattened like those observed in the Chengjiang Fauna. These fossils look like living animals, and their detailed morphological characteristics provide convincing evidence of the body plan, evolution, systematics and ontogeny of Cambrian arthropods. Because of the great importance of Orsten-type fossils, many Chinese paleontologists have been working constantly to search for them in Cambrian strata all over China for more than 20 years. Southern China is well known as one of the most important regions in the world, and is expected to have great potential for yielding many Orsten-type fossils. The research on Orsten-type fossils is challenging and will surely attract more attention. © 2017, Science Press. All right reserved.


Huang J.-N.,The Geological Museum of China | Liu H.-H.,The Geological Museum of China | Yang L.-F.,The Geological Museum of China
Acta Geoscientica Sinica | Year: 2017

The rapid development of professional science and technology museum and the desire of geosciences knowledge from the public set an even higher demand for geosciences museum exhibition techniques. The classification of geosciences museum in China, the state of public science diathesis and the major transmission of geosciences knowledge are analyzed in this paper. Based on the characteristics of geomorphologic content and consulting demonstration techniques of science and technology exhibition hall, the authors have investigated the key techniques in public demonstration of landform formation and evolution mechanism exhibition system in this study, and finally applied them successfully in prototype model production. User experiences are respected especially in the exhibition system mentioned above. And virtual simulation, reality images, active machine sand table and digital multimedia are intergraded in the exhibition system. So, this system is easy to extend according to professional content and can control the final cost, and can also be popularized in geosciences museum and relevant exhibition hall. © 2017, Science Press. All right reserved.


Chen X.-Y.,The Geological Museum of China
Acta Geoscientica Sinica | Year: 2017

A partial skull of protoceratopsid dinosaur from the Lower Cretaceous strata of Hanggin Banner, Ordos City, Inner Mongolia, is described and assigned to Protoceratops sp. This is the first report of protoceratopsid dinosaur from the Lower Cretaceous of China, and also the first record of protoceratopsid dinosaur from Ordos region. This discovery not only expands the distribution of protoceratopsid dinosaur in China but also enriches the Ordos dinosaur fauna. © 2017, Science Press. All right reserved.


Le Y.,The Geological Museum of China
Acta Geoscientica Sinica | Year: 2017

With the number of the geological museums increasing year by year, special exhibition becomes more and more important besides permanent display. Special exhibition has many characteristics, such as specialization, conforming to science, interesting character, timeliness and continuity. With the prosperity and development of national culture, a large number of geological museum exhibition designs and contents look similar to each other, and hence it is difficult to attract the audience. Staff members from the Geological Museum of China did research on permanent and special exhibition design of the geological museum. This paper summarizes the principles, processes and elements of exhibition design of the geological museum. In the aspect of the principle of exhibition design, the designer not only needs to know the art of design but also should have geological knowledge. In the aspect of the exhibition design process, the designer should make a plan first, determine the number of exhibits, sort out the outline of the exhibition and then carry out the overall planning and art design, thus finally achieving cooperation and optimization. As for the exhibition design elements, the designer has to pay more attention to the spatial design, exhibits selection, art performance, light design, color design and some other factors. The exhibition designer should highlight the characteristics of geology, create innovative art performance so as to promote the development of the geological museums in China. © 2017, Science Press. All right reserved.


Cheng Y.-M.,The Geological Museum of China
Review of Palaeobotany and Palynology | Year: 2011

A new species, Ashicaulis claytoniites, is established based on two specimens collected from Middle Jurassic sediments near Duanmugou, Changgao Village, Beipiao County, west Liaoning Province of China. The specimens represent stems surrounded by a mantle of stipular petiole bases and adventitious roots. The stems, 6-8. mm in diameter, consist of an ectophloic dictyoxylic stele and a two-layered cortex containing 31-37 leaf traces. When departing from the stele, the leaf traces are a flattened C-shaped, with an endarch protoxylem which bifurcates at the base of petiole. The sclerenchyma ring is heterogeneous with an arch of stipular petiole base at the base that are divided into two lateral strands at the top. A big mass heterogeneous sclerenchyma is present in the stipular wing. In the ectophloic dictyoxylic stele and arrangement of sclerenchyma of the petiole base, Ashicaulis claytoniites shares smiliarities with Osmunda claytoniana L. of Osmunda subg. Osmunda, but not with other subgenera of Osmunda subg. Plenasium, Osmundastrum, the genera Todea, and Leptopteris in the extant Osmundaceae. According to the similarities of these features, a distinct relationship is suggested between Ashicaulis claytoniites and Osmunda claytoniana. The new species could be a close Mesozoic relative of O. claytoniana. This new species shows the similar arrangement of the sclerenchyma of the petiole base with the Mesozoic species, Millerocaulis preosmunda, suggesting that the morphogenera Millerocaulis and Ashicaulis are closely related, and the new species may be a transitional form between the Mesozoic M. preosmunda and Osmunda claytoniana of extant subgenus Osmunda. © 2011 Elsevier B.V.

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