Some Messel Pit specimens: real or not?

[Kim sung hyun]

Here are some messel fit specimens I recently got and saw. These are from German collector, old collection.

 

I guess that bird and fish(amia) specimens is real, but not sure about the others.

 

Is there anyone who can identify it?

 

[Ludwigia]

I wouldn't be surprised if you have some duplicates there, but I'm no expert on the subject, so let's ask @rocket or @oilshale if they could give you an opinion.

[doushantuo]

e.g.:

mammals: Jens Franzen

birds:Gerald Mayr

Fish: Norbert Micklich

 

edit: whether they can be easily approached is another matter

Edited May 30, 2022 by doushantuo

[rocket]

bird o.k., fish o.k.

Mammal not easy. We have the same..., so perhaps you have a copy or the original one

[rocket]

about the mammal and the disarticulated skeleton, could you post a pic with light from the back?

When I have a close look on the skull I am a bit unsure if its a copy

you have blue-light? The tooth should normally shine yellow or blue

[rocket]

when I look close to the skeleton I can see small holes in the feet and bones. This is normally an indicator that you have a copy

I add two messel-copies, sorry for the bad quality of the pics. I have to take new ones next days, this were done with something like a camera, bit ago :-(

When you look on the surface of the horse-plate and the bones of the squamate, you see bubbles like the ones you have

 

[rocket]

and some pics of an original mammal from messel, brown bones, no bubbles