What are the methods of dating fossils

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Här söker du efter sidor, artiklar och dokument på nrm. Du har möjlighet att sortera träffarna efter dokumentformat, senast ändrad-datum, ingång i huvudmeny samt språk. För kontaktinformation, gå till Kontakta oss eller Sök medarbetare. Din sökning fossils gav 76 träffar. The walls consist of fibres, interpreted as reflecting an original aragonitic fabric. Bundles of fibres are arranged in growth lamellae, and the latter form an angle of at least 45° with. Dating phylogenies using fossils is also becoming.

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Publikationer 2007

Assessing calibration uncertainty in molecular dating: The assignment of fossils to alternative calibration points. Tidskrift : Systematic Biology Volym: 56 Sidor: Although recent methodological advances have allowed the incorporation of rate variation in molecular dating analyses, the calibration procedure, performed mainly through fossils, remains resistant to improvements. One source of uncertainty pertains to the assignment of fossils to specific nodes in a phylogeny, especially when alternative possibilities exist that can be equally justified on morphological grounds. Here we expand on a recently developed fossil cross-validation method to evaluate whether alternative nodal assignments of multiple fossils produce calibration sets that differ in their internal consistency.

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