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  • 1
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    An Early Cretaceous tribosphenic mammal and metatherian evolution (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2003-12-13
    Beschreibung: Derived features of a new boreosphenidan mammal from the Lower Cretaceous Yixian Formation of China suggest that it has a closer relationship to metatherians (including extant marsupials) than to eutherians (including extant placentals). This fossil dates to 125 million years ago and extends the record of marsupial relatives with skeletal remains by 50 million years. It also has many foot structures known only from climbing and tree-living extant mammals, suggesting that early crown therians exploited diverse niches. New data from this fossil support the view that Asia was likely the center for the diversification of the earliest metatherians and eutherians during the Early Cretaceous.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luo, Zhe-Xi -- Ji, Qiang -- Wible, John R -- Yuan, Chong-Xi -- New York, N.Y. -- Science. 2003 Dec 12;302(5652):1934-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Carnegie Museum of Natural History, Pittsburgh, PA 15213, USA. luoz@carnegiemuseums.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14671295" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adaptation, Biological ; Animals ; *Biological Evolution ; Biomechanical Phenomena ; Bone and Bones/anatomy & histology ; China ; Dentition ; *Fossils ; Geography ; Locomotion ; *Mammals/anatomy & histology/classification/physiology ; *Marsupialia/anatomy & histology/classification/physiology ; Paleodontology ; Paleontology ; Phylogeny ; Time
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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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
    Publikationsdatum: 2006-02-25
    Beschreibung: 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〉
    Schlagwort(e): 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
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    AKTUELLE ARTIKEL
  • 3
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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
    Publikationsdatum: 2013-08-21
    Beschreibung: 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〉
    Schlagwort(e): 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
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    AKTUELLE ARTIKEL
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