Go Back   Family Tree DNA Forums > General Interest > Scientific Papers

Scientific Papers For talk of scientific papers on population genetics, archaeology, and anthropology related to DNA and personal ancestry testing.

Reply
 
Thread Tools Display Modes
  #1  
Old 11th February 2016, 01:45 AM
PNGarrison PNGarrison is offline
H4a1a4a | R1-BY3322
 
Join Date: Dec 2013
Posts: 412
New geological and palaeontological age constraint for the gorilla–human lineag

http://www.nature.com/nature/journal...ture16510.html
Sorry for the duplication. I can't find any way to delete the whole thing.
New geological and palaeontological age constraint for the gorilla–human lineage split
not open accesss
Shigehiro Katoh, Yonas Beyene, Tetsumaru Itaya, Hironobu Hyodo, Masayuki Hyodo, Koshi Yagi, Chitaro Gouzu, Giday WoldeGabriel, William K. Hart, Stanley H. Ambrose, Hideo Nakaya, Raymond L. Bernor, Jean-Renaud Boisserie, Faysal Bibi, Haruo Saegusa, Tomohiko Sasaki, Katsuhiro Sano, Berhane Asfaw & Gen Suwa

Nature 530, 215–218 (11 February 2016) doi:10.1038/nature16510
Received 27 September 2015 Accepted 03 December 2015 Published online 10 February 2016

The palaeobiological record of 12 million to 7 million years ago (Ma) is crucial to the elucidation of African ape and human origins, but few fossil assemblages of this period have been reported from sub-Saharan Africa. Since the 1970s, the Chorora Formation, Ethiopia, has been widely considered to contain ~10.5 million year (Myr) old mammalian fossils1, 2, 3, 4, 5, 6, 7. More recently, Chororapithecus abyssinicus, a probable primitive member of the gorilla clade6, was discovered from the formation. Here we report new field observations and geochemical, magnetostratigraphic and radioisotopic results that securely place the Chorora Formation sediments to between ~9 and ~7 Ma. The C. abyssinicus fossils are ~8.0 Myr old, forming a revised age constraint of the human–gorilla split. Other Chorora fossils range in age from ~8.5 to 7 Ma and comprise the first sub-Saharan mammalian assemblage that spans this period. These fossils suggest indigenous African evolution of multiple mammalian lineages/groups between 10 and 7 Ma, including a possible ancestral-descendent relationship between the ~9.8 Myr old Nakalipithecus nakayamai8 and C. abyssinicus. The new chronology and fossils suggest that faunal provinciality between eastern Africa and Eurasia had intensified by ~9 Ma, with decreased faunal interchange thereafter9, 10, 11, 12. The Chorora evidence supports the hypothesis of in situ African evolution of the Gorilla–Pan–human clade, and is concordant with the deeper divergence estimates of humans and great apes based on lower mutation rates of ~0.5 × 10−9 per site per year (refs 13, 14, 15).

Last edited by PNGarrison; 11th February 2016 at 01:52 AM.
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
New geological and palaeontological age constraint for the gorilla–human lineag PNGarrison Scientific Papers 0 11th February 2016 01:45 AM
Human skin color 1798 Recreation Room 42 5th May 2015 01:29 PM
The Chimp dna and Human dna. 1798 Recreation Room 91 10th September 2014 01:09 AM
Neanderthal/Human divergence AAM DNA and Genealogy for Beginners 7 26th October 2006 11:38 PM
New Human DNA Discovered tomcat DNA and Genealogy for Beginners 0 6th September 2006 08:02 AM


All times are GMT -5. The time now is 11:51 AM.


Family Tree DNA - World Headquarters

1445 North Loop West, Suite 820
Houston, Texas 77008, USA

Phone: (713) 868-1438 | Fax: (832) 201-7147
Copyright 2001-2010 Genealogy by Genetics, Ltd.
Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.