|
Naraoia
Feb 12, 2011 7:45:39 GMT -5
Post by pleecan (Peter Lee) on Feb 12, 2011 7:45:39 GMT -5
Chengjiang Biota: Naraioa
|
|
|
Naraoia
Feb 12, 2011 7:53:00 GMT -5
Post by pleecan (Peter Lee) on Feb 12, 2011 7:53:00 GMT -5
|
|
|
Naraoia
Feb 12, 2011 7:57:57 GMT -5
Post by pleecan (Peter Lee) on Feb 12, 2011 7:57:57 GMT -5
|
|
|
Naraoia
Feb 12, 2011 8:18:14 GMT -5
Post by Joe Botting on Feb 12, 2011 8:18:14 GMT -5
Strange... was it compressed oblique to bedding or something? I'm trying to work out the deformation and failing.
|
|
|
Naraoia
Feb 12, 2011 9:00:56 GMT -5
Post by pleecan (Peter Lee) on Feb 12, 2011 9:00:56 GMT -5
I will zoom out Joe and take another picture....
|
|
|
Naraoia
Feb 12, 2011 9:33:42 GMT -5
Post by pleecan (Peter Lee) on Feb 12, 2011 9:33:42 GMT -5
When I turn the fossil on its ends .. yes the bedding plane is parallel to the fossil more or less... you are seeing fine grain structure in the parallel bedding plane... this high resolution photo was taken with a Sigma SD10 DSLR with the famed Foveon Technology capable of resolving 1bit resolution vs 3 bit resolution needed for conventional DSLR ie 3x more sensitive.... I love these cameras (no longer in production)... they are so sharp that they pick up every flaw in a lens... makes a good lens look crummy sometime.... I also have capabilities of threading microscope objectives as part of the lens system.
|
|
|
Naraoia
Mar 17, 2012 19:51:09 GMT -5
Post by pleecan (Peter Lee) on Mar 17, 2012 19:51:09 GMT -5
This image was processed by Enrico Bonino. "Just for fun ,I've little bit processed the Peter's Naraoia image, (photomerged the both half), converted in LAB color space, histogram stretched, and color filtered to try to enhance a little bit the features that characterize this specimen." "In the attached image are highlighted the interesting structures. The ridges show that the exoskeleton was soft (as soft-bodied trilobite terminology) and not mineralized like in trilobites. In orange, in sagittal position, are visible the digestive caecae where the digestive processes were developed, and in the left side the beautiful gills used probably to swim and breath. A more oblique lighting of the sample, using different directions, in general can pop-up other (eventual) features."
|
|
|
Naraoia
Mar 18, 2012 10:04:41 GMT -5
Post by Joe Botting on Mar 18, 2012 10:04:41 GMT -5
I'm always impressed by how much there is in these specimens, compared with what you see at first glance...
|
|
|
Naraoia
Mar 18, 2012 15:19:45 GMT -5
Post by pleecan (Peter Lee) on Mar 18, 2012 15:19:45 GMT -5
|
|
|
Naraoia
Mar 19, 2012 6:32:51 GMT -5
Post by Joe Botting on Mar 19, 2012 6:32:51 GMT -5
Read it, thanks - we're looking into gut phosphatisation at the moment because of the Afon Gam hyolith. It was a nice paper.
|
|
|
Naraoia
Mar 19, 2012 7:22:48 GMT -5
Post by pleecan (Peter Lee) on Mar 19, 2012 7:22:48 GMT -5
You are welcome Joe. PL
|
|