Hi,

I would suggest the following steps depending on hoe much material you have unveiled:

1. Avoid any chemical cleansing because you could destroy such meagre eggshells

 2. Taking SEM shots to extract as much palaeooological information as you can prior their cutting. You can also use the SEM pictures to distinguish the different oospecies you have collected.

3. If you wish to obtain professional thin sections especially from meagre material (like the megallolithid picture on our group's opening page); you should contact a very experience cutter; It is a such a difficult craft that even very experience guys commit mistakes. I could pass you some emails ....

4. Knowing the different types of oospecies from the SEM, you need to decide whetehr you will cut them in transverse or radial sections (bot are necessary for a proper palaeoological study). Usually if you have one eggshell per oospecies you cut in half, however in your case it seems that you may have just one of each oospecies...

If they are megaloolithid oospecies from the same crop they likely to be the same oospecies...

I hope this will help you!

mmazanza <mmazanza@...> wrote:

Hi everybody
I have started this topic to ask you for help. I'm working with very
tiny dinosaur eggshells (less than 1 mm) and I'm having lots of
problems to prepare thin sections in a usual way. I'd appreciate any
help or pice of advise.
Thanks a lot