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 is still of vertebrate animals—help release the secrets and techniques of this lengthy historical past. 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 way of paleobiologists, geologists, and archeologists looking to piece jointly the vertebrate record.Thirteen revered researchers mix their reviews in Bonebeds, supplying readers with practicable definitions, theoretical frameworks, and a compendium of recent suggestions in bonebed information assortment and research. through addressing the old, theoretical, and sensible points of bonebed learn, this edited volume—the first of its kind—provides the historical past and techniques that scholars and execs have to discover and comprehend those fabulous documents of old lifestyles and death.
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Additional info for Bonebeds: Genesis, Analysis, and Paleobiological Significance
The longer the sedimentary hiatus, the greater the potential quantity (and ecological mixture) of hardparts supplied, and thus the richer and laterally more continuous the ultimate skeletal concentration may be. On the other hand, conditions of low or zero net sedimentation also increase the period that any cohort of skeletal material is subject to destructive postmortem processes operating at or near the depositional interface. Thus, the advantages of lowered sedimentary dilution might be outweighed by taphonomic culling.
If a relative concentration of vertebrate skeletal debris exhibits a taphonomic signature that does not readily correspond to one of our major formative categories, it should be viewed as a clear warning to consider a suite of more complex formative scenarios. Finally, we appreciate the fact that a bonebed, at its most basic expression (remains of two individuals in close association), can form by pure happenstance. Two carcasses can certainly come to rest in close proximity for entirely unrelated, unpredictable, and perhaps ultimately undecipherable reasons.
Outline of eastern North Pacific fossil cetacean assemblages.