Four hundred million year old fish fossil has earliest example of teeth

[Oxytropidoceras]

Advanced technology sheds new light on evolution of teeth

by Uppsala University, PhysOrg, July 9, 2020

https://phys.org/news/2020-07-advanced-technology-evolution-teeth.html

 

Scientists trace the origin of our teeth from the most primitive 

jawed fish, European Synchrotron Radiation Facility, July 9, 2020

https://www.sciencedaily.com/releases/2020/07/200709141606.htm

https://www.eurekalert.org/pub_releases/2020-07/uu-ats070820.php

 

Four hundred million year old fish fossil has earliest example of teeth

by Bob Yirka, June 24, 2015

https://phys.org/news/2015-06-million-year-fish-fossil-earliest.html

 

The papers are:

 

Vaskaninova, V., Chen, D., Tafforeau, P., Johanson, Z., Ekrt, B., Blom, 

H., and Ahlberg, P.E., 2020. Marginal dentition and multiple dermal 

jawbones as the ancestral condition of jawed vertebrates. Science.

369(6500) pp.211-216.

https://science.sciencemag.org/content/369/6500/211

 

Rücklin, M. and Donoghue, P.C., 2015. Romundina and the evolutionary 

origin of teeth. Biology Letters, 11(6), p.20150326.

https://royalsocietypublishing.org/doi/abs/10.1098/rsbl.2015.0326

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.781.8298&rep=rep1&type=pdf

https://research-information.bris.ac.uk/files/55864918/Rucklin_2015.pdf

 

Yours,

 

Paul H.