منابع مشابه
A Problem in Paleobiology
We present a stochastic model for the size of a taxon in paleobiology, in which we allow for the evolution of new taxon members, and both individual and catastrophic extinction events. The model uses ideas from the theory of birth and death processes. Some general properties of the model are developed, and a fuller discussion is given for specific distributions of the time between catastrophic ...
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This paper is a defense of “explanatory pluralism” (i.e., the view that some events can be correctly explained in two distinct ways). To defend pluralism, I argue that a certain class of macroevolutionary trends (what I call “asymmetrical passive trends”) can be explained in two distinct but compatible ways. The first approach (“actual sequence explanation”) is to trace out the particular force...
متن کاملSmithsonian Contributions to Paleobiology
Olson, Storrs L., and David C. Parris. The Cretaceous Birds of New Jersey. Smithsonian Contributions to Paleobiology, number 63, 22 pages, 11 figures, 1987.•^This is a revision of the fossil birds from Late Cretaceous (Maastrichtian; Hornerstown and Navesink formations) deposits in New Jersey. Material of previously named taxa, described over a century ago, is augmented by more recently collect...
متن کاملPhylogenetic Eigenvector Regression in Paleobiology
Phylogenetic Eigenvector Regression (PVR) is a fl exible comparative method that allows testing several hypotheses on phylogenetic signal and correlated evolution among traits. Selected phylogenetic eigenvectors extracted from a phylogenetic distance matrix among taxa allow representing their phylogenetic relatedness in a raw-data form (i.e. instead of a distance matrix) and can then be used as...
متن کاملTaphonomy and paleobiology
—Taphonomy plays diverse roles in paleobiology. These include assessing sample quality relevant to ecologic, biogeographic, and evolutionary questions, diagnosing the roles of various taphonomic agents, processes and circumstances in generating the sedimentary and fossil records, and reconstructing the dynamics of organic recycling over time as a part of Earth history. Major advances over the p...
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ژورنال
عنوان ژورنال: Journal of Paleontology
سال: 2017
ISSN: 0022-3360,1937-2337
DOI: 10.1017/jpa.2017.20