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Author Topic:   Embryonic fossils 500 MY old - a YEC explanation?
jar
Member (Idle past 424 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004


Message 9 of 15 (357710)
10-20-2006 11:39 AM
Reply to: Message 8 by EZscience
10-20-2006 10:04 AM


Re: A more reader-friendly link...
Yes, quite correct. Earlier than the Burgess Shale, but still consistent with a lack of multicellular diversity in the Pre-Cambrian.
Uhmmmmm, not quite.
There seems to be lots of newer evidence being found that shows more than even simple multicelular critters and even bilateral critters existing in the pre-cambrian. In particular the recent work of Chen etal describing findings from China point to a substancial body of diversity during the late precambrian period.
Shelly microfossils
Pre-Cambrian Animal Life

Aslan is not a Tame Lion

This message is a reply to:
 Message 8 by EZscience, posted 10-20-2006 10:04 AM EZscience has replied

Replies to this message:
 Message 10 by EZscience, posted 10-20-2006 12:00 PM jar has replied

  
jar
Member (Idle past 424 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004


Message 11 of 15 (357724)
10-20-2006 12:12 PM
Reply to: Message 10 by EZscience
10-20-2006 12:00 PM


Re: Cnidarians etc.
What the Cambrian explosion really represented was the appearance of multiple new and more complex body plans with both bilateral and radial symmetry, many of which gave rise to the extant lineages of higher organisms we see today, and many strange 'experiments' that left no descendents at all, but would be considered to represent novel phyla if they were alive today.
But I was under the impression that we were now finding examples of both bilateral and radial symmetry 40-50 million years before the cambrian.
As one such example

Aslan is not a Tame Lion

This message is a reply to:
 Message 10 by EZscience, posted 10-20-2006 12:00 PM EZscience has replied

Replies to this message:
 Message 12 by EZscience, posted 10-20-2006 12:21 PM jar has replied

  
jar
Member (Idle past 424 days)
Posts: 34026
From: Texas!!
Joined: 04-20-2004


Message 13 of 15 (357731)
10-20-2006 12:28 PM
Reply to: Message 12 by EZscience
10-20-2006 12:21 PM


Re: Cnidarians etc.
But bilateral symmetry does not imply much complexity - it only sets the stage for a polarized body plan with a head end and a tail end. These were very primitive microscopic organisms.
Certainly.
However what it does show is that the basics for life as we see it today go back at least to the precambrian, and that the precambrian is NOT some sudden appears of forms never before seen, but rather the basics for the lifeforms found in the cambrian explosion can be seen more than 40 million years earlier.
Neither of these facts seem to provide much of a YEC explanation though and so far I have noticed that as usual, the YEC model to explan what is seen has been noticably missing from this thread.
Why is it that so far NO YEC has ever been able to present a model that adequately explains anything seen?

Aslan is not a Tame Lion

This message is a reply to:
 Message 12 by EZscience, posted 10-20-2006 12:21 PM EZscience has replied

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