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  • 1
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    A Jurassic eutherian mammal and divergence of marsupials and placentals (2011)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2011-08-26
    Description: Placentals are the most abundant mammals that have diversified into every niche for vertebrates and dominated the world's terrestrial biotas in the Cenozoic. A critical event in mammalian history is the divergence of eutherians, the clade inclusive of all living placentals, from the metatherian-marsupial clade. Here we report the discovery of a new eutherian of 160 Myr from the Jurassic of China, which extends the first appearance of the eutherian-placental clade by about 35 Myr from the previous record, reducing and resolving a discrepancy between the previous fossil record and the molecular estimate for the placental-marsupial divergence. This mammal has scansorial forelimb features, and provides the ancestral condition for dental and other anatomical features of eutherians.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luo, Zhe-Xi -- Yuan, Chong-Xi -- Meng, Qing-Jin -- Ji, Qiang -- England -- Nature. 2011 Aug 24;476(7361):442-5. doi: 10.1038/nature10291.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Carnegie Museum of Natural History, Pittsburgh, Pennsylvania 15213, USA. luoz@carnegiemnh.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21866158" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; China ; Female ; *Fossils ; History, Ancient ; Mammals/*anatomy & histology/*classification/embryology/physiology ; Mandible/anatomy & histology ; Marsupialia/*anatomy & histology/*classification/physiology ; Molar/anatomy & histology ; *Phylogeny ; Placenta/*physiology ; Pregnancy ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    A swimming mammaliaform from the Middle Jurassic and ecomorphological diversification of early mammals (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-02-25
    Description: A docodontan mammaliaform from the Middle Jurassic of China possesses swimming and burrowing skeletal adaptations and some dental features for aquatic feeding. It is the most primitive taxon in the mammalian lineage known to have fur and has a broad, flattened, partly scaly tail analogous to that of modern beavers. We infer that docodontans were semiaquatic, convergent to the modern platypus and many Cenozoic placentals. This fossil demonstrates that some mammaliaforms, or proximal relatives to modern mammals, developed diverse locomotory and feeding adaptations and were ecomorphologically different from the majority of generalized small terrestrial Mesozoic mammalian insectivores.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ji, Qiang -- Luo, Zhe-Xi -- Yuan, Chong-Xi -- Tabrum, Alan R -- New York, N.Y. -- Science. 2006 Feb 24;311(5764):1123-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth Science, Nanjing University, Nanjing 200017, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16497926" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Body Size ; Bone and Bones/anatomy & histology ; China ; Dentition ; Ear Ossicles/anatomy & histology ; Environment ; Feeding Behavior ; *Fossils ; Hair/anatomy & histology ; *Mammals/anatomy & histology/classification/physiology ; Mandible/anatomy & histology ; Paleodontology ; Paleontology ; Phylogeny ; Ribs/anatomy & histology ; Skull/anatomy & histology ; Spine/anatomy & histology ; Swimming ; Tail/anatomy & histology ; Water
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Evolutionary development of the middle ear in Mesozoic therian mammals (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-10-10
    Description: The definitive mammalian middle ear (DMME) is defined by the loss of embryonic Meckel's cartilage and disconnection of the middle ear from the mandible in adults. It is a major feature distinguishing living mammals from nonmammalian vertebrates. We report a Cretaceous trechnotherian mammal with an ossified Meckel's cartilage in the adult, showing that homoplastic evolution of the DMME occurred in derived therian mammals, besides the known cases of eutriconodonts. The mandible with ossified Meckel's cartilage appears to be paedomorphic. Reabsorption of embryonic Meckel's cartilage to disconnect the ear ossicles from the mandible is patterned by a network of genes and signaling pathways. This fossil suggests that developmental heterochrony and gene patterning are major mechanisms in homplastic evolution of the DMME.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ji, Qiang -- Luo, Zhe-Xi -- Zhang, Xingliao -- Yuan, Chong-Xi -- Xu, Li -- New York, N.Y. -- Science. 2009 Oct 9;326(5950):278-81. doi: 10.1126/science.1178501.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19815774" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Cartilage/embryology/physiology ; Chondrogenesis ; Dentition ; Ear Ossicles/anatomy & histology/embryology ; *Ear, Middle/anatomy & histology/embryology ; Embryo, Mammalian/anatomy & histology ; *Fossils ; Gene Expression Regulation, Developmental ; Intercellular Signaling Peptides and Proteins/metabolism ; *Mammals/anatomy & histology/classification/embryology/genetics ; Mandible/anatomy & histology ; Mice ; Mice, Mutant Strains ; *Osteogenesis ; Phylogeny ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Earliest evolution of multituberculate mammals revealed by a new Jurassic fossil (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-08-21
    Description: Multituberculates were successful herbivorous mammals and were more diverse and numerically abundant than any other mammal groups in Mesozoic ecosystems. The clade also developed diverse locomotor adaptations in the Cretaceous and Paleogene. We report a new fossil skeleton from the Late Jurassic of China that belongs to the basalmost multituberculate family. Dental features of this new Jurassic multituberculate show omnivorous adaptation, and its well-preserved skeleton sheds light on ancestral skeletal features of all multituberculates, especially the highly mobile joints of the ankle, crucial for later evolutionary success of multituberculates in the Cretaceous and Paleogene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yuan, Chong-Xi -- Ji, Qiang -- Meng, Qing-Jin -- Tabrum, Alan R -- Luo, Zhe-Xi -- New York, N.Y. -- Science. 2013 Aug 16;341(6147):779-83. doi: 10.1126/science.1237970.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Geology, Chinese Academy of Geological Sciences, Beijing, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23950536" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Animals ; *Biological Evolution ; Biomechanical Phenomena ; Bone and Bones/anatomy & histology ; China ; Dentition ; *Fossils ; Joints/anatomy & histology/physiology ; Locomotion ; *Mammals/anatomy & histology/classification/physiology ; Mandible/anatomy & histology ; Paleodontology ; Phylogeny ; Tooth/anatomy & histology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Sarez Pamir aftershock seismic network (2017)
    GFZ Data Services
    Details
    Publication Date: 2023-02-08
    Description: Abstract
    Description: The Sarez Pamir aftershock seismic network was installed two months after the 7 December 2015, Mw7.2 Sarez Pamir earthquake in the eastern Pamir highland of Tajikistan. In the first recording period until September 2016, the stations were distributed along the Sarez-Karakul fault system. In September 2016 part of the stations were moved into the southern Pamir. In total the network consisted of eight stations on 13 sites, equipped with broad band, 3-component seismometers of type Trillium Compact. The data were recorded using Earth Data recorders (EDR), recording was continuous at a sample rate of 100Hz.The principal aim of the network was to record the aftershock sequence of the Sarez earthquake and to augment the coeval East Pamir China seismic network and the earlier TIPAGE and TIPTIMON seismic networks. Waveform data are available from the GEOFON data centre, under network code 9H, and are embargoed until January 2021.
    Keywords: Broadband seismic waveforms ; Seismic monitoring ; temporary local seismic network ; Monitoring system ; Seismological stations ; In Situ/Laboratory Instruments 〉 Magnetic/Motion Sensors 〉 Seismometers ; In Situ Land-based Platforms 〉 GEOPHYSICAL STATIONS/NETWORKS
    Type: Dataset , Seismic Network
    Format: ~90G
    Format: .mseed
    Format: XML
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  • 6
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    East Pamir Network (2017)
    GFZ Data Services
    Details
    Publication Date: 2023-02-08
    Description: Abstract
    Description: The East Pamir seismic network was located on the eastern flank of the Pamir highlands and the in the foreland of the adjacent Tarim Basin of western China. It was in operation between August 2015 and May 2017 and consisted of 30 broad band, 3-component seismometers of type Güralp CMG-3ESP or Nanometrics Trillium 120. The data were recorded using Earth Data PS6-24 "EDL" recorders, continuously at a sample rate of 100Hz, with an average station distance of ~20km. The network was designed to augment the earlier TIPAGE and TIPTIMON seismic networks.The principal aim of the network was to characterize the current deformation field in the region. It further recorded the 2015 M7.2 Sarez earthquake. Waveform data are available from the GEOFON data centre, under network code 8H, and are embargoed until January 2021.
    Keywords: Broadband seismic waveforms ; Seismic monitoring ; temporary local seismic network ; Monitoring system ; Seismological stations ; In Situ/Laboratory Instruments 〉 Magnetic/Motion Sensors 〉 Seismometers ; In Situ Land-based Platforms 〉 GEOPHYSICAL STATIONS/NETWORKS
    Type: Dataset , Seismic Network
    Format: ~600G
    Format: .mseed
    Format: XML
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  • 7
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    BRAVOSEIS Onshore Seismic Array (2020)
    GFZ Data Services
    Details
    Publication Date: 2024-02-21
    Description: Abstract
    Description: The Bransfield Strait is a seismically active extensional rift located between the Antarctic Peninsula and the South Shetland Islands. The Strait is partly located on continental crust including areas within the transition to seafloor spreading. The amphibious seismic network BRAVOSEIS is an international effort focused on the seismological research of submarine volcanoes and rift dynamics in the Bransfield Strait. This network is the onshore component of the entire network consisting of 15 broadband land stations deployed in the South Shetland Islands and Antarctic Peninsula between January 2018 and February 2020. The offshore components (network code ZX) include 9 broadband ocean bottom seismometers (OBS) across the Central Bransfield Basin and a group of 6 hydrophone moorings spanning the rift area of 200 x 100 km2, with inter-station distance of ~30 km. Additionally, a smaller offshore array consisting of 15 short-period OBSs with an aperture of 20 km and a narrow inter-station distance of ~4 km was deployed around the Orca submarine volcanic edifice south of King George Island. The data will be used to study the geodynamics of the Bransfield Strait and the evolution of the incipient rifting zone in the domain where extension has been suggested. Seismological methods will include earthquake location, source mechanism, surface wave analysis with ambient noise and earthquake data, receiver function and shear wave splitting. The results may shed light on the crustal structure and tectonic regime in the region and image the location and extent of magma accumulations related to submarine volcanic structures. Finally, the results should provide clues to assess the internal processes that occur in the submarine volcanoes of the area undergoing rifting. Waveform data are available from the GEOFON data centre, under network code 5M, and are embargoed until March 2024.
    Keywords: Broadband seismic waveforms ; Seismic monitoring ; temporary local seismic network ; Monitoring system ; Seismological stations ; In Situ/Laboratory Instruments 〉 Magnetic/Motion Sensors 〉 Seismometers ; In Situ Land-based Platforms 〉 GEOPHYSICAL STATIONS/NETWORKS
    Type: Dataset , Seismic Network
    Format: ~1T
    Format: .mseed
    Format: XML
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