This report is about the first record of non-avian dinosaur eggs in the Hefei Basin,Anhui Province,China.Based on the combination of elongated egg body,linear ridges on the outer surface and two structure layer,the eg...This report is about the first record of non-avian dinosaur eggs in the Hefei Basin,Anhui Province,China.Based on the combination of elongated egg body,linear ridges on the outer surface and two structure layer,the eggs can be referred to Elongatoolithidae.The gradual boundary between the cone and the column layers as well as the relative thin eggshell(less than 1 mm)indicates its affinity within Elongatoolithus.The eggs are identified as Elongatoolithus oosp.,as they were severely compressed and experienced erosion on both inner and outer surfaces.The discovery of egg fossil in the Hefei Basin offers evidence for stratum comparison in this region and supplements the diversity of egg fossils in Anhui.Meanwhile,this discovery also enriches the paleogeographic distribution of elongatoolithids.展开更多
The micromammal fossils collected from the Shangzhuang Formation of the Linxia Basin,Gansu,are described here.The assemblage consists of 16 species of 13 genera belonging to 7 families,including one new species and on...The micromammal fossils collected from the Shangzhuang Formation of the Linxia Basin,Gansu,are described here.The assemblage consists of 16 species of 13 genera belonging to 7 families,including one new species and one taxon previously unknown from China.Among them 5 genera are Oligocene holdovers and 11 genera/species are known to make their first appearances in Early Miocene,indicating an Early Miocene age for the Gucheng Fauna.The absence of Oligocene survivors such as Tataromys,Yindirtemys,Eucricetodon and Tachyoryctoides,which usually occur in the Xiejian age of Early Miocene,and the presence of newcomers Protalactaga,Megacricetodon and Gobicricetodon,that made their first appearance only in the Shanwangian age of late Early Miocene,suggest that the Gucheng Fauna is of a later age of Early Miocene.The new species,Sinolagomys guchengensis,showing more derived morphology than in S.ulunguensis,seems to support an assessment of the fauna in Shanwangian age.Thus,the Gucheng Fauna may belong to late Early Miocene Shanwangian,partially equivalent to MN 3/4 of the European land mammal zonation.Ecological analysis of the fauna indicates that the palaeoecological condition of the Gucheng area might still be a predominantly arid shrub-steppe in late Early Miocene.展开更多
Leaves of a Metasequoia glyptostroboides tree in Paomu Village,Longshan County,Hunan Province (Paomu Tree) possess"Even Type"cuticles and frill-margined stomata similar to those of fossil Metasequoia by far ...Leaves of a Metasequoia glyptostroboides tree in Paomu Village,Longshan County,Hunan Province (Paomu Tree) possess"Even Type"cuticles and frill-margined stomata similar to those of fossil Metasequoia by far known but different from all other living Metasequoia trees(common trees).Paomu Tree is thus hypothesized as the real"living fossil",which has been supported by preliminary DNA analyses. Techniques of clearing leaf,epidermis stripping,展开更多
Elaborate and precise replicas taken from real fossils are used for academic researches in place of originals. They are often exhibited in museums in order to avoid demolition of the fragile originals.Replicas not onl...Elaborate and precise replicas taken from real fossils are used for academic researches in place of originals. They are often exhibited in museums in order to avoid demolition of the fragile originals.Replicas not only increase the number of specimens but also expand the chances for people to get direct observation of scientifically valuable materials.Up to now。展开更多
The Middle Jurassic system is well developed and exposed in western Liaoning Province including two formations,the Tiaojishan Formation and the Haifanggou Formation.The Tiaojishan Formation is represented by intermedi...The Middle Jurassic system is well developed and exposed in western Liaoning Province including two formations,the Tiaojishan Formation and the Haifanggou Formation.The Tiaojishan Formation is represented by intermediate extrusive and pyroclastic rocks,with intercalations of basic volcanic and sedimentary rocks.Diverse silicified wood specimens were recovered from this formation in Lamaying,展开更多
There are more than 30 fossil-dominated geoparks established in China.Most of them are of high scientific values.Compared to landscape-dominated geoparks,the fossil-dominated ones generally lack of charming natural sc...There are more than 30 fossil-dominated geoparks established in China.Most of them are of high scientific values.Compared to landscape-dominated geoparks,the fossil-dominated ones generally lack of charming natural sceneries,but the abundant and exquisite preserved fossils in geoparks are very attractive to the public.In order to protect and exploit these fossils,the evaluation plays an important role in the geopark construction.Ningcheng geopark is famous for the Mesozoic Daohugou biota.The fossil assemblage is different from Jehol biota,which attracts many experts.In this paper the展开更多
A great number of fossil scallops were found from the Duho Formation of the Pohang Basin,Korea.Most of the specimens are preserved as slightly altered original carbonate shells,and internal and external molds were als...A great number of fossil scallops were found from the Duho Formation of the Pohang Basin,Korea.Most of the specimens are preserved as slightly altered original carbonate shells,and internal and external molds were also observed in the specimens whose calcareous materials were washed out.In particular, external and internal molds are more frequently observed from the thin and small(less than 1 cm展开更多
The Middle Miocene Duho Formation of the Yeonil Group,Pohang Basin,Korea is one of the best recognized formations for the Cenozoic plant fossils, including various leaves,reproductive organs,and fossil woods.We,in thi...The Middle Miocene Duho Formation of the Yeonil Group,Pohang Basin,Korea is one of the best recognized formations for the Cenozoic plant fossils, including various leaves,reproductive organs,and fossil woods.We,in this paper,first report winged fruits(10 specimens) from the Duho Formation.They were identified into two structurally different groups:展开更多
文摘This report is about the first record of non-avian dinosaur eggs in the Hefei Basin,Anhui Province,China.Based on the combination of elongated egg body,linear ridges on the outer surface and two structure layer,the eggs can be referred to Elongatoolithidae.The gradual boundary between the cone and the column layers as well as the relative thin eggshell(less than 1 mm)indicates its affinity within Elongatoolithus.The eggs are identified as Elongatoolithus oosp.,as they were severely compressed and experienced erosion on both inner and outer surfaces.The discovery of egg fossil in the Hefei Basin offers evidence for stratum comparison in this region and supplements the diversity of egg fossils in Anhui.Meanwhile,this discovery also enriches the paleogeographic distribution of elongatoolithids.
文摘The micromammal fossils collected from the Shangzhuang Formation of the Linxia Basin,Gansu,are described here.The assemblage consists of 16 species of 13 genera belonging to 7 families,including one new species and one taxon previously unknown from China.Among them 5 genera are Oligocene holdovers and 11 genera/species are known to make their first appearances in Early Miocene,indicating an Early Miocene age for the Gucheng Fauna.The absence of Oligocene survivors such as Tataromys,Yindirtemys,Eucricetodon and Tachyoryctoides,which usually occur in the Xiejian age of Early Miocene,and the presence of newcomers Protalactaga,Megacricetodon and Gobicricetodon,that made their first appearance only in the Shanwangian age of late Early Miocene,suggest that the Gucheng Fauna is of a later age of Early Miocene.The new species,Sinolagomys guchengensis,showing more derived morphology than in S.ulunguensis,seems to support an assessment of the fauna in Shanwangian age.Thus,the Gucheng Fauna may belong to late Early Miocene Shanwangian,partially equivalent to MN 3/4 of the European land mammal zonation.Ecological analysis of the fauna indicates that the palaeoecological condition of the Gucheng area might still be a predominantly arid shrub-steppe in late Early Miocene.
文摘Leaves of a Metasequoia glyptostroboides tree in Paomu Village,Longshan County,Hunan Province (Paomu Tree) possess"Even Type"cuticles and frill-margined stomata similar to those of fossil Metasequoia by far known but different from all other living Metasequoia trees(common trees).Paomu Tree is thus hypothesized as the real"living fossil",which has been supported by preliminary DNA analyses. Techniques of clearing leaf,epidermis stripping,
文摘Elaborate and precise replicas taken from real fossils are used for academic researches in place of originals. They are often exhibited in museums in order to avoid demolition of the fragile originals.Replicas not only increase the number of specimens but also expand the chances for people to get direct observation of scientifically valuable materials.Up to now。
文摘The Middle Jurassic system is well developed and exposed in western Liaoning Province including two formations,the Tiaojishan Formation and the Haifanggou Formation.The Tiaojishan Formation is represented by intermediate extrusive and pyroclastic rocks,with intercalations of basic volcanic and sedimentary rocks.Diverse silicified wood specimens were recovered from this formation in Lamaying,
文摘There are more than 30 fossil-dominated geoparks established in China.Most of them are of high scientific values.Compared to landscape-dominated geoparks,the fossil-dominated ones generally lack of charming natural sceneries,but the abundant and exquisite preserved fossils in geoparks are very attractive to the public.In order to protect and exploit these fossils,the evaluation plays an important role in the geopark construction.Ningcheng geopark is famous for the Mesozoic Daohugou biota.The fossil assemblage is different from Jehol biota,which attracts many experts.In this paper the
文摘A great number of fossil scallops were found from the Duho Formation of the Pohang Basin,Korea.Most of the specimens are preserved as slightly altered original carbonate shells,and internal and external molds were also observed in the specimens whose calcareous materials were washed out.In particular, external and internal molds are more frequently observed from the thin and small(less than 1 cm
文摘The Middle Miocene Duho Formation of the Yeonil Group,Pohang Basin,Korea is one of the best recognized formations for the Cenozoic plant fossils, including various leaves,reproductive organs,and fossil woods.We,in this paper,first report winged fruits(10 specimens) from the Duho Formation.They were identified into two structurally different groups:
