Register | Sign In


Understanding through Discussion


EvC Forum active members: 59 (9164 total)
5 online now:
Newest Member: ChatGPT
Post Volume: Total: 916,926 Year: 4,183/9,624 Month: 1,054/974 Week: 13/368 Day: 13/11 Hour: 1/1


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   new aunt/uncle - A. deyiremeda
caffeine
Member (Idle past 1055 days)
Posts: 1800
From: Prague, Czech Republic
Joined: 10-22-2008


Message 9 of 13 (759077)
06-08-2015 4:14 PM
Reply to: Message 7 by RAZD
06-05-2015 3:16 PM


Re: and ... they're off and running ...
It seems to me that if you have two contemporaneous populations with morphologically distinct features that that would be evidence of genetic isolation.
But when one of your populations consists of three partial jaws, the question is whether it is in a fact a distinct population, and we haven't just improved our sample of the variation in one existing population. There are plenty of low frequency traits in modern humans. When the squid people discover one of these for the first time millions of years in the future, clustered together as heritable traits tend to be, it would be rash for them to declare a new species of modern human.

This message is a reply to:
 Message 7 by RAZD, posted 06-05-2015 3:16 PM RAZD has replied

Replies to this message:
 Message 10 by Coyote, posted 06-08-2015 5:06 PM caffeine has not replied
 Message 11 by RAZD, posted 06-09-2015 3:39 PM caffeine has replied

  
caffeine
Member (Idle past 1055 days)
Posts: 1800
From: Prague, Czech Republic
Joined: 10-22-2008


Message 12 of 13 (759461)
06-11-2015 3:23 PM
Reply to: Message 11 by RAZD
06-09-2015 3:39 PM


Re: and ... they're off and running ...
And I would agree, were it not that there are quite a number of fossils of the other australopithecines iirc, and that these purportedly fall outside those fossils.
Large for a hominin species, but not really that large in an absolute sense. I tried to find some more specific numbers, but that proved a lot harder to do than I expected.
Anyway, as we (or, at least, I) don't have a subscription to Nature, so don't actually know how different these fossils are from Australopithecus afarensis, I guess we can leave it to the experts to argue over for now, as you suggest!
Edited by caffeine, : No reason given.

This message is a reply to:
 Message 11 by RAZD, posted 06-09-2015 3:39 PM RAZD has not replied

Replies to this message:
 Message 13 by jar, posted 06-11-2015 3:32 PM caffeine has not replied

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024