Single-celled eukaryote fossil with evidence of mineralizing
found in Yukon by Bob Yirka, June 29, 2017
https://phys.org/news/2017-06-single-celled-eukaryote-fossil-evidence-mineralizing.html
Precursor of teeth and bones discovered in 810-million-year
old fossils. Single-celled fossils found in Canada show the
earliest evidence of a tissue-hardening process known as
biomineralisation, writes Andrew Masterson, Cosmos.
https://cosmosmagazine.com/palaeontology/precursor-of-teeth-and-bones-discovered-in-810-million-year-old-fossils
The paper is:
Cohen, P. A., J. V. Strauss, A. D. Rooney, M. Sharma, and
N. Tosca, 2017, Controlled hydroxyapatite biomineralization
in an ~810 million-year-old unicellular eukaryote. Science
Advances. Vol. 3, no. 6, e1700095. DOI: 10.1126/sciadv.1700095
http://advances.sciencemag.org/content/3/6/e1700095.full
Yours,
Paul H.