[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

CNN:Mammal groups showed up before dinos died out

CNN article appears at:

Major mammal groups appeared before dinosaurs died out, study says
April 29, 1998   

some excerpts
   The work suggests at least five major lineages, which today include
   such creatures as rodents, elephants and armadillos, might have
   appeared more than 100 million years ago. 
   The results, based on analysis of genes, are presented in Thursday's
   issue of the journal Nature by S. Blair Hedges and a colleague at
   Pennsylvania State University. Hedges and co-authors published a
   similar study in 1996, but their new study includes many more genes.