PHYLOGENIES WITHOUT FOSSILS
نویسندگان
چکیده
منابع مشابه
Perspectives from fossils and phylogenies
Over half of all described species are insects, but until recently our understanding of the reasons for this diversity was based on very little macroevolutionary evidence. Here I summarize the hypotheses that have been posed, tests of these hypotheses and their results, and hence identify gaps in knowledge for future researchers to pursue. I focus on inferences from the following sources: (i) t...
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We thank Britz et al. [1] for introducing Houy's [2] prescient interpretation of the significance of †Opisthomyzon for the evolution of modern remora anatomy , and regret not having discovered his elegant account ourselves [3]. Many prominent ichthyologists have considered the relevance of †Opisthomyzon since its discovery more than a century ago [4– 7], but none of their observations approache...
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Comparative biologists often attempt to draw inferences about tempo and mode in evolution by comparing the fit of evolutionary models to phylogenetic comparative data consisting of a molecular phylogeny with branch lengths and trait measurements from extant taxa. These kinds of approaches ignore historical evidence for evolutionary pattern and process contained in the fossil record. In this art...
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The decidedly asymmetrical architecture of the Tree of Life betrays the fact that some evolutionary lineages have diversified to a greater or lesser extent than have others. It has been a goal of evolutionary ecology to identify shifts in diversification rate (speciation rate minus extinction rate) and their causal bases. Historically, the question of relative diversity was addressed in terms o...
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Time-calibrated molecular phylogenies provide a valuable window into the tempo and mode of species diversification, especially for the large number of groups that lack adequate fossil records. Molecular phylogenetic data frequently suggest an initial "explosive speciation" phase, leading to widespread speculation that ecological niche-filling processes might govern the dynamics of species diver...
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ژورنال
عنوان ژورنال: Evolution
سال: 1994
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1994.tb01341.x