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| 1 | 2 |  » Stats |
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30-07-2010, 09:22 AM
| | Commander of the Wild Empire | | Join Date: Jun 2010
Posts: 1,658
| | | World's oldest species
In The Independent today (30/07) there is a report that two colonies of the tadpole shrimp, Triops cancriformis, have been discovered near Caerlaverock. T.cancriformis has existed unchanged for >200 million years.
Can anyone put up a link? I am computer illiterate . . .
Ric
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30-07-2010, 09:27 AM
|  | Commander of the Wild Empire | | Join Date: Dec 2006 Location: On the southern boundary of the Lake District National Park.
Posts: 4,582
| | | Re: World's oldest species
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30-07-2010, 10:33 AM
| | Commander of the Wild Empire | | Join Date: Jul 2008 Location: Watford, Hertfordshire.
Posts: 4,863
| | | Re: World's oldest species
I liked the following comment to the article:
"That's not the 'oldest pedigree'. They just haven't been subjected to evolutionary pressure of any kind in a while.
We all have a pedigree of 4bn years, or thereabouts..."
ISTRC that they also live in temporary pools on the Lulworth tank ranges in Dorset.
Jim |
30-07-2010, 05:13 PM
| | Commander of the Wild Empire | | Join Date: Jun 2010
Posts: 1,658
| | | Re: World's oldest species
Jim - you are of course correct. Every species living today can in principle trace its ancestry back to the first appearance of life on Earth, at least 3.7 billion YBP. I just thought it might be of interest that a species which has existed unchanged for 200 million years is alive and well and living in Scotland. They are also known as Rangers fans . . .
I wonder what the wee shrimpies wear under their kilts?
Ric
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30-07-2010, 07:30 PM
|  | Knight Commander of the Wild Empire | | Join Date: Oct 2005 Location: Sheffield, FPRSY
Posts: 7,655
| | | Re: World's oldest species
What they mean, of course, is the oldest extant species which can be clearly defined (maybe)!  | | |
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