Taphonomy

Taphonomy - Taphonomy Taphonomy everything that happens to...

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Taphonomy Taphonomy – everything that happens to an organism after death and before study. Conversion of Biocenosis to Thanatocenosis yields a “bias” in the fossil record. Population Dynamics – rates/conditions of birth, growth, death – determine the translation. What does a graveyard tell us about life? Fossil assemblages are Time Averaged
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Recruitment (birth) • Generally seasonal (may be localized for vagrant taxa) • Larval stages rarely preserved Infant mortality usually extremely high Larvae/young recruits may be in a different niche from adults Growth • Initially very rapid, often declines with age • Early stages may be destroyed (resorbed) Growth may be seasonal/environmental Molting leaves instars Death • Mortality is usually age/season/environment dependent • Type of mortality may determine preservability Mass kills are uncommon
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DESTRUCTION OF REMAINS Thanatocoenosis to Taphocoenosis Biological Bacterial decomposition – reduced O2 enhances preservation
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This note was uploaded on 10/23/2011 for the course GLY 1000 taught by Professor Parker during the Spring '11 term at FSU.

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Taphonomy - Taphonomy Taphonomy everything that happens to...

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