Cretaceous eutherians and Laurasian origin for placental mammals near the K/T boundary

Rougier, G. W. ; Novacek, M. J. ; Asher, R. J. ; Wible, J. R.

[s.l.] : Nature Publishing Group
Published 2007
ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
Chemistry and Pharmacology
Medicine
Natural Sciences in General
Physics
Notes:
[Auszug] Estimates of the time of origin for placental mammals from DNA studies span nearly the duration of the Cretaceous period (145 to 65 million years ago), with a maximum of 129 million years ago and a minimum of 78 million years ago. Palaeontologists too are divided on the ...
Type of Medium:
Electronic Resource
URL: