By Raymond R. Rogers, David A. Eberth, Anthony R. Fiorillo
The vertebrate fossil checklist extends again greater than 500 million years, and bonebeds—localized concentrations of the skeletal continues to be of vertebrate animals—help unencumber the secrets and techniques of this lengthy heritage. usually spectacularly preserved, bonebeds—both glossy and ancient—can demonstrate extra approximately existence histories, ecological institutions, and upkeep styles than any unmarried skeleton or bone. consequently, bonebeds are often studied by way of paleobiologists, geologists, and archeologists trying to piece jointly the vertebrate record.Thirteen revered researchers mix their stories in Bonebeds, supplying readers with attainable definitions, theoretical frameworks, and a compendium of recent concepts in bonebed info assortment and research. through addressing the ancient, theoretical, and functional elements of bonebed study, this edited volume—the first of its kind—provides the heritage and techniques that scholars and execs have to discover and comprehend those wonderful documents of old lifestyles and death.
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Extra resources for Bonebeds: Genesis, Analysis, and Paleobiological Significance
2000). , 2005). , 1995; Rogers and Kidwell, 2000). , 2001). Others, however, have been interpreted as attritional accumulations that developed over time as bones and teeth of numerous animals were hydraulically transported within the fluvial system. , Lawton, 1977). While the attritional scenarios outlined above are arguably possible, we find it conceptually difficult to accept the proposition that disarticulated bones and teeth of numerous animals delivered from widely separated point sources at different times would travel downstream through complex and hydraulically unstable channel belts and collectively accumulate on a regular basis (Fig.
Rogers and Susan M. 4. Hydraulic concentrations of carcasses, parts of carcasses, or disarticulated bones and/or teeth form by the action of surface flows (wind, water, sediment) or wave activity. Transport of bioclastic material to the site of concentration is an integral part of this formative scenario. , log jams). Shipman, 1981). , Rogers and Kidwell, 2000). 5. Sedimentologic concentrations, like hydraulic concentrations, are intimately linked to hydraulic processes. The key difference lies in their direct genetic link to the siliciclastic sedimentary budget, be it positive, zero, or negative.
Shipman, 1981). , Rogers and Kidwell, 2000). 5. Sedimentologic concentrations, like hydraulic concentrations, are intimately linked to hydraulic processes. The key difference lies in their direct genetic link to the siliciclastic sedimentary budget, be it positive, zero, or negative. An obrution assemblage forms in response to, and is permanently buried by, a single unusual circumstance of sediment deposition. The obrution category is a composite mode of concentration that hinges upon both ecology (living animals initially congregate) and sedimentary geology (obrution triggers mortality and captures the concentration).
Bonebeds: Genesis, Analysis, and Paleobiological Significance by Raymond R. Rogers, David A. Eberth, Anthony R. Fiorillo