By Raymond R. Rogers, David A. Eberth, Anthony R. Fiorillo
The vertebrate fossil list extends again greater than 500 million years, and bonebeds—localized concentrations of the skeletal continues to be of vertebrate animals—help free up the secrets and techniques of this lengthy background. frequently spectacularly preserved, bonebeds—both sleek and ancient—can display extra approximately existence histories, ecological institutions, and maintenance styles than any unmarried skeleton or bone. as a result, bonebeds are usually studied by means of paleobiologists, geologists, and archeologists looking to piece jointly the vertebrate record.Thirteen revered researchers mix their studies in Bonebeds, offering readers with doable definitions, theoretical frameworks, and a compendium of contemporary thoughts in bonebed facts assortment and research. via addressing the historic, theoretical, and functional facets of bonebed study, this edited volume—the first of its kind—provides the heritage and techniques that scholars and pros have to discover and comprehend those terrific documents of historical lifestyles and death.
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Additional info for Bonebeds: Genesis, Analysis, and Paleobiological Significance
Terry, 2004; Laudet and Selva, 2005; among others), and the findings indicate that differentiating the feces and regurgitate of various bone-ingesting species is possible, even in the fossil record. For example, Mayhew (1977) compared the taphonomic characteristics of modern mammalian remains in pellets of diurnal and nocturnal birds of prey and identified characteristic breakage patterns and distinctive corrosion effects. These criteria were then applied to a Pleistocene fossil locality in order to identify the concentrating agent, which turned out to be a diurnal avian predator.
For example, based on his seminal flume studies, Voorhies (1969) introduced the concept of fluvial transport groups (later referred to as “Voorhies groups” by Behrensmeyer, 1975), which reflect the transport potential and sorting 22 Raymond R. Rogers and Susan M. Kidwell behavior of disarticulated vertebrate elements (specifically those of sheep and coyote) with increasing current velocity. Using these guides, Voorhies (1969) interpreted the Pliocene Verdigre Quarry bone assemblage of Nebraska as hydraulic in origin.
The degree of articulation and element association should generally be high. , predator-prey associations). Finally, the vertebrate assemblage should be within or immediately beneath a thick or otherwise anomalous sedimentation unit, such as an ash bed or debris flow deposit. , bioturbation and pedogenesis). CAVEATS AND COMPLICATIONS The general mechanisms of bone concentration presented here are based on conceptual arguments and empirical observations, and the formative scenarios conform to expected and observed physical and biological parameters—they are intended to be intuitively reasonable.