Abstract
Tipping Points: A Statistical Comparison between Humans and Conodonts
Highlights
Fossil marine bio-apatites from conodonts teeth; small animals that lived in ancient seas, can store a record of the content of paleoseawater of arsenic and lead [1]
Tipping point defined as exceeding Pb or As cut points
The Conodonts in our study were obtained from the Pennsylvanian Atrasado Formation of central new Mexico, about 305 million years old
Summary
Fossil marine bio-apatites from conodonts teeth; small animals that lived in ancient seas, can store a record of the content of paleoseawater of arsenic and lead [1]. This can be compared statistically to the arsenic and lead contents in contemporaneous human teeth [2] and to the amounts of these metals found in rocks [3]. A tipping point is a statistically determined amount reached at which small changes become big enough to cause a large change. We use statistical methods to compare the tipping points for arsenic and lead in conodonts and contemporaneous human tissues [2]
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