Academic literature on the topic 'Eutherians'

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Journal articles on the topic "Eutherians"

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Zhang, Xuzhe, Mihaela Pavlicev, Helen N. Jones, and Louis J. Muglia. "Eutherian-Specific Gene TRIML2 Attenuates Inflammation in the Evolution of Placentation." Molecular Biology and Evolution 37, no. 2 (October 9, 2019): 507–23. http://dx.doi.org/10.1093/molbev/msz238.

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Abstract Evolution of highly invasive placentation in the stem lineage of eutherians and subsequent extension of pregnancy set eutherians apart from other mammals, that is, marsupials with short-lived placentas, and oviparous monotremes. Recent studies suggest that eutherian implantation evolved from marsupial attachment reaction, an inflammatory process induced by the direct contact of fetal placenta with maternal endometrium after the breakdown of the shell coat, and shortly before the onset of parturition. Unique to eutherians, a dramatic downregulation of inflammation after implantation pr
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V.R. Prasad, Guntupalli, Omkar Verma, Ashok Sahni, and Ashu Khosla. "Cretaceous mammals of India–Stratigraphic distribution, diversity and intercontinental affinities." Journal of Palaeosciences 70, no. (1-2) (September 10, 2021): 173–92. http://dx.doi.org/10.54991/jop.2021.14.

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Extensive research carried out on the Cretaceous deposits of Laurasia has revealed an overwhelming presence of eutherian, metatherian and multituberculate groups of mammals in the Cretaceous ecosystems of Northern Hemisphere continents. In contrast, the relatively poorly documented fossil record of Cretaceous mammals from Gondwanan continents is represented by gondwanatherians, dryolestoids, and a few multituberculates and haramiyidans. Until now, no undoubted eutherian mammals have been reported from the Cretaceous strata of the southern continents except for India. In this context, Indian Cr
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Dos Santos, Sandra E., Jairo Porfirio, Felipe B. da Cunha, Paul R. Manger, William Tavares, Leila Pessoa, Mary Ann Raghanti, Chet C. Sherwood, and Suzana Herculano-Houzel. "Cellular Scaling Rules for the Brains of Marsupials: Not as “Primitive” as Expected." Brain, Behavior and Evolution 89, no. 1 (2017): 48–63. http://dx.doi.org/10.1159/000452856.

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In the effort to understand the evolution of mammalian brains, we have found that common relationships between brain structure mass and numbers of nonneuronal (glial and vascular) cells apply across eutherian mammals, but brain structure mass scales differently with numbers of neurons across structures and across primate and nonprimate clades. This suggests that the ancestral scaling rules for mammalian brains are those shared by extant nonprimate eutherians - but do these scaling relationships apply to marsupials, a sister group to eutherians that diverged early in mammalian evolution? Here w
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Goswami, Anjali, Nick Milne, and Stephen Wroe. "Biting through constraints: cranial morphology, disparity and convergence across living and fossil carnivorous mammals." Proceedings of the Royal Society B: Biological Sciences 278, no. 1713 (November 24, 2010): 1831–39. http://dx.doi.org/10.1098/rspb.2010.2031.

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Carnivory has evolved independently several times in eutherian (including placental) and metatherian (including marsupial) mammals. We used geometric morphometrics to assess convergences associated with the evolution of carnivory across a broad suite of mammals, including the eutherian clades Carnivora and Creodonta and the metatherian clades Thylacoleonidae, Dasyuromorphia, Didelphidae and Borhyaenoidea. We further quantified cranial disparity across eutherians and metatherians to test the hypothesis that the marsupial mode of reproduction has constrained their morphological evolution. This s
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Collet, C., R. Joseph, and K. Nicholas. "Cloning, cDNA analysis and prolactin-dependent expression of a marsupial alpha-lactalbumin." Reproduction, Fertility and Development 2, no. 6 (1990): 693. http://dx.doi.org/10.1071/rd9900693.

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The gene for alpha-lactalbumin has been cloned from a tammar wallaby (Macropus eugenii) mammary gland cDNA library. Tammar alpha-lactalbumin has approximately 50 and 30% homology to the alpha-lactalbumins of eutherians at the levels of nucleotide and protein sequence respectively. Comparison of the inferred tammar polypeptide sequence with the sequence of the eutherian proteins reveals extensive divergence at almost all of the non-essential amino acid residues. However, the hydropathy plots of the tammar protein are almost identical to those of eutherian alpha-lactalbumins, suggesting that pro
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McKenzie, LM, and DW Cooper. "Low MHC class II variability in a marsupial." Reproduction, Fertility and Development 6, no. 6 (1994): 721. http://dx.doi.org/10.1071/rd9940721.

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The major histocompatibility complex (MHC) loci have been shown to be highly polymorphic in most eutherian ('placental') species studied. Several hypotheses have been advanced for the maintenance of this exceptional level of genetic variation, one of which suggests that it is necessary for successful eutherian reproduction. Marsupials (metatherians) and eutherians are the only two groups of viviparous mammals, but their modes of reproduction are quite distinct. Although marsupials have placentae, they are generally shorter lived and less invasive than in eutherians. Other investigations have s
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Gerkema, Menno P., Wayne I. L. Davies, Russell G. Foster, Michael Menaker, and Roelof A. Hut. "The nocturnal bottleneck and the evolution of activity patterns in mammals." Proceedings of the Royal Society B: Biological Sciences 280, no. 1765 (August 22, 2013): 20130508. http://dx.doi.org/10.1098/rspb.2013.0508.

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In 1942, Walls described the concept of a ‘nocturnal bottleneck’ in placental mammals, where these species could survive only by avoiding daytime activity during times in which dinosaurs were the dominant taxon. Walls based this concept of a longer episode of nocturnality in early eutherian mammals by comparing the visual systems of reptiles, birds and all three extant taxa of the mammalian lineage, namely the monotremes, marsupials (now included in the metatherians) and placentals (included in the eutherians). This review describes the status of what has become known as the nocturnal bottlene
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Edwards, Carol A., Nozomi Takahashi, Jennifer A. Corish, and Anne C. Ferguson-Smith. "The origins of genomic imprinting in mammals." Reproduction, Fertility and Development 31, no. 7 (2019): 1203. http://dx.doi.org/10.1071/rd18176.

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Genomic imprinting is a process that causes genes to be expressed according to their parental origin. Imprinting appears to have evolved gradually in two of the three mammalian subclasses, with no imprinted genes yet identified in prototheria and only six found to be imprinted in marsupials to date. By interrogating the genomes of eutherian suborders, we determine that imprinting evolved at the majority of eutherian specific genes before the eutherian radiation. Theories considering the evolution of imprinting often relate to resource allocation and recently consider maternal–offspring interac
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Frankenberg, S., A. J. Pask, and M. B. Renfree. "259. Pluripotency genes in a marsupial, the tammar wallaby." Reproduction, Fertility and Development 20, no. 9 (2008): 59. http://dx.doi.org/10.1071/srb08abs259.

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Markers of pluripotency and early differentiation in the early embryo have been extensively characterised in eutherian species, most notably the mouse. By comparison, mechanisms controlling pluripotency and early lineage specification have received surprisingly little attention in marsupials, which represent the second major infraclass of mammals. Early marsupial embryogenesis exhibits overt morphological differences to that of eutherians, however the underlying developmental mechanisms may be conserved. In order to characterise early marsupial development at the molecular level, we have ident
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Messer, M., D. C. Shaw, A. S. Weiss, P. Rissmiller, and M. Griffiths. "Estimation of Divergence Dates for Monotremes From Comparisons of A-Lactalbumin Amino Acid Sequences." Australian Mammalogy 20, no. 2 (1998): 310. http://dx.doi.org/10.1071/am98323.

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cx-Lactalbumins were isolated from milk of the platypus (Ornithorhynchus anatinus) and the echidna (Tachyglossus aculeatus). Their amino acid sequences were determined and compared with those of the cx- lactalbumins often eutherian and two marsupial species, using the computer programme ("Distances") to calculate the number of differences (substitutions) between a total of 36 pairs of cx-lactalbumins. As expected, the amino acid sequences of the monotreme cx-lactalbumins were more similar to each other than to those of other mammals, as were the sequences of the marsupial and the eutherian cx-
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Dissertations / Theses on the topic "Eutherians"

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Hore, Timothy Alexander, and timothy hore@anu edu au. "THE EVOLUTION OF GENOMIC IMPRINTING AND X CHROMOSOME INACTIVATION IN MAMMALS." The Australian National University. Research School of Biological Sciences, 2008. http://thesis.anu.edu.au./public/adt-ANU20081216.152553.

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Genomic imprinting is responsible for monoallelic gene expression that depends on the sex of the parent from which the alleles (one active, one silent) were inherited. X-chromosome inactivation is also a form of monoallelic gene expression. One of the two X chromosomes is transcriptionally silenced in the somatic cells of females, effectively equalising gene dosage with males who have only one X chromosome that is not complemented by a gene poor Y chromosome. X chromosome inactivation is random in eutherian mammals, but imprinted in marsupials, and in the extraembryonic membranes of some place
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Cox, P. G. "Functional morphology of the orbital region of eutherian mammals." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598097.

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After an initial chapter introducing the orbital region and surveying the literature, Chapter Two addresses the scope of the variation in orbital construction with a comprehensive description of the orbits of placental mammals, order by order. This information is used to score 23 morphological characters from the orbital region in representatives from as many eutherian families as possible. These character states are then plotted on to existing phylogenies of the Eutheria in order to study the evolution of orbital characters throughout the group. This elucidates which characters are more plast
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Dudley, Jessica Suzanne. "Uterine changes during mammalian pregnancy and the evolution of placentation." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/18802.

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Reproduction is a complex phenomenon that is fundamental to all living things. There is a plethora of strategies that animals utilise to reproduce. The uterine epithelium of viviparous mammals undergoes vast remodelling to accommodate the developing embryo. There are several levels of placental invasion in mammals that develop a placenta, based on the number of cell layers that separate the developing fetus and maternal blood stream. This thesis investigated whether there are common molecular changes to the uterine surface during pregnancy in Theria. I compared uterine remodelling across sever
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Zhang, Xuzhe. "Eutherian-specific gene TRIML2 attenuates inflammation in the evolution of placentation." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1573576401238203.

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Weinstein, Deborah Lynn. "Phylogeny and Relationships of Taeniodonta, an Enigmatic Order of Eutherian Mammals (Paleogene, North America)." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1248301491.

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Klutzny, Simone. "Phylogenetic implications of the regio orbito-temporalis in embryonic mammals." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324355.

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Julien-Laferriere, Didier. "Utilisation de l'espace et des ressources alimentaires chez Caluromys philander (Marsupialia, Didelphidae) : comparaison avec Potos Flavus (Eutheria, Procyonidae)." Paris 13, 1989. http://www.theses.fr/1989PA131011.

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Les modalités d'utilisation de l'espace et des ressources alimentaires ont été étudiées chez Caluromys philander (Marsupialia, Didelphidae) en forêt primaire de Guyane française, en comparaison avec Potos Flavus (Eutheria, Procyonidae). L'organisation du domaine vital est analysée chez C. Philander. On montre que cette espèce est opportuniste et qu'il existe une influence du sexe, du stade reproducteur des femelles, ainsi que de la disponibilité des ressources alimentaires, sur certains caractères du domaine vital et du comportement des individus. Les régimes alimentaires des deux mammifères,
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Sloan, Angela M. "Atypical molecular evolution of afrotherian and xenarthran [beta]-globin cluster genes with insights into the [beta]-globin cluster gene organization of stem eutherians." 2005. http://hdl.handle.net/1993/20868.

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Hore, Tim. "The Evolution of Genomic Imprinting and X Chromosome Inactivation in Mammals." Phd thesis, 2008. http://hdl.handle.net/1885/49309.

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Genomic imprinting is responsible for monoallelic gene expression that depends on the sex of the parent from which the alleles (one active, one silent) were inherited. X-chromosome inactivation is also a form of monoallelic gene expression. One of the two X chromosomes is transcriptionally silenced in the somatic cells of females, effectively equalising gene dosage with males who have only one X chromosome that is not complemented by a gene poor Y chromosome. X chromosome inactivation is random in eutherian mammals, but imprinted in marsupials, and in the extraembryonic membranes of some place
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Schraven, Andrea L. "Transcriptomic analysis of the gray short-tailed opossum (Monodelphis domestica) B-cell genes." Thesis, 2019. http://hdl.handle.net/1959.7/uws:56732.

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Marsupials and eutherians are mammals that differ in their physiological traits, predominately their reproductive and developmental strategies; eutherians give birth to well-developed young, while marsupials are born highly altricial after a much shorter gestation. These developmental traits result in differences in the development of the immune system of eutherian and marsupial species. B-cells are key to humoral immunity, are found in multiple lymphoid organs, and have the unique ability to mediate the production of antigen-specific antibodies in the presence of pathogens. Marsupial B-cell i
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Books on the topic "Eutherians"

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Novacek, Michael J. The skull of leptictid insectivorans and the higher-level classification of eutherian mammals. New York: American Museum of Natural History, 1986.

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Wible, John R. New data on the skull and dentition in the Mongolian late Cretaceous eutherian mammal Zalambdalestes. New York, NY: American Museum of Natural History, 2004.

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MacPhee, R. D. E. Morphology, adaptations, and relationships of Plesiorycteropus and a diagnosis of a new order of eutherian mammals. New York, N.Y: American Museum of Natural History, 1994.

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Kosco, Mark. Reproduction in Eutherian Mammals. Kosco Press, 2004.

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Tetz, Martin, and Eutherios von Eutherios von Tyana. Antilogie des Eutherios Von Tyana. de Gruyter GmbH, Walter, 2020.

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Comparative Anatomy of the Gastrointestinal Tract in Eutheria: Taxonomy, Biogeography and Food. De Gruyter, Inc., 2017.

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Schmidt-Rhaesa, Andreas, and Willy Kükenthal. Comparative Anatomy of the Gastrointestinal Tract in Eutheria II: Taxonomy, Biogeography and Food. Laurasiatheria. de Gruyter GmbH, Walter, 2017.

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Schmidt-Rhaesa, Andreas, and Willy Kükenthal. Comparative Anatomy of the Gastrointestinal Tract in Eutheria II: Taxonomy, Biogeography and Food. Laurasiatheria. de Gruyter GmbH, Walter, 2017.

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Schmidt-Rhaesa, Andreas, and Willy Kükenthal. Comparative Anatomy of the Gastrointestinal Tract in Eutheria II: Taxonomy, Biogeography and Food. Laurasiatheria. de Gruyter GmbH, Walter, 2017.

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Langer, Peter. Comparative Anatomy of the Gastrointestinal Tract in Eutheria I : Taxonomy, Biogeography and Food: Afrotheria, Xenarthra and Euarchontoglires. de Gruyter GmbH, Walter, 2017.

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Book chapters on the topic "Eutherians"

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Urashima, Tadasu, Michael Messer, and Olav T. Oftedal. "Comparative Biochemistry and Evolution of Milk Oligosaccharides of Monotremes, Marsupials, and Eutherians." In Evolutionary Biology: Genome Evolution, Speciation, Coevolution and Origin of Life, 3–33. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07623-2_1.

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Mossman, Harland W. "Types of Eutherian Placentation." In Vertebrate Fetal Membranes, 91–97. London: Macmillan Education UK, 1987. http://dx.doi.org/10.1007/978-1-349-09065-5_14.

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Holliday, Robin. "Longevity and fecundity in eutherian mammals." In Genetics and Evolution of Aging, 217–25. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-017-1671-0_18.

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Mossman, Harland W. "Principal Types of Eutherian Fetal Membrane Systems." In Vertebrate Fetal Membranes, 88–90. London: Macmillan Education UK, 1987. http://dx.doi.org/10.1007/978-1-349-09065-5_13.

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Mate, K. E., M. S. Harris, and J. C. Rodger. "Fertilization in Monotreme, Marsupial and Eutherian Mammals." In Fertilization in Protozoa and Metazoan Animals, 223–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-58301-8_6.

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Cifelli, Richard L. "Theria of Metatherian-Eutherian Grade and the Origin of Marsupials." In Mammal Phylogeny, 205–15. New York, NY: Springer New York, 1993. http://dx.doi.org/10.1007/978-1-4613-9249-1_14.

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Mossman, Harland W. "Morphogenesis of Eutherian Fetal Membranes as Evidence of Their Evolution and Phylogeny." In Vertebrate Fetal Membranes, 124–32. London: Macmillan Education UK, 1987. http://dx.doi.org/10.1007/978-1-349-09065-5_20.

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Mossman, Harland W. "Introduction to the Morphogenesis of the Fetal Membranes of Eutheria." In Vertebrate Fetal Membranes, 165–67. London: Macmillan Education UK, 1987. http://dx.doi.org/10.1007/978-1-349-09065-5_25.

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Mossman, Harland W. "Notes on Individual Membranes and Tissues of the Eutherian Fetal Membrane System and on the Decidua." In Vertebrate Fetal Membranes, 154–61. London: Macmillan Education UK, 1987. http://dx.doi.org/10.1007/978-1-349-09065-5_24.

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Shoshani, Jeheskel, Morris Goodman, John Czelusniak, and Gerhard Braunitzer. "A Phylogeny of Rodentia and Other Eutherian Orders: Parsimony Analysis Utilizing Amino Acid Sequences of Alpha and Beta Hemoglobin Chains." In Evolutionary Relationships among Rodents, 191–210. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-0539-0_7.

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Conference papers on the topic "Eutherians"

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Silviria, Jason. "Biogeography and Biostratigraphy of North American Eutherian Mammals During the Puercan Faunal Stage (paleocene, Earliest Danian)." In 2018 New Mexico Geological Society Annual Spring Meeting. Socorro, NM: New Mexico Geological Society, 2018. http://dx.doi.org/10.56577/sm-2018.757.

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Chu, Zhuyin, Jahandar Ramezani, Huaiyu He, and Samuel A. Bowring. "HIGH-PRECISION AGE CONSTRAINTS ON THE JURASSIC RISE OF FEATHERED DINOSAURS AND EUTHERIAN MAMMALS: U-PB GEOCHRONOLOGY OF THE YANLIAO BIOTA FROM JIANCHANG (WESTERN LIAONING PROVINCE, CHINA)." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-287253.

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