Fossils The Formation of Vaals

[Mart1980]

Yesterday I was up early to look for fossils in the Vaalser Greensand (The Formation of Vaals or Vaalser Groenzand is a geological formation from the last Late Cretaceous). Fossils from the Vaals green sand are sparsely distributed, and yet it is extraordinarily rich in fossils.

 

I had read some time ago that you can go to Boundary 7 for these kinds of fossils. Mineral and fossil collectors prefer to speak of the 'Cucullaea bank' of post 7. The post is located exactly at the source of the "Kothauzerbach". In total, in this jungle-like area (I'm really covered in scratches), there are three springs. The cause is obvious; Precipitation water seeps through the overlying sand of the hills, but is forced to surface on the border of the water-retaining Vaals green sand. Here I found several pieces from which the following fossils remained.

 

Now my question, is this fossil wood? I didn't even have to dig myself. The badgers in this area had neatly laid out the fossils outside their burrows through their graves.

 

What do you think this is? It is very difficult to feel the boundary between the Limestone and the harder layer. I tried to expose it as much as possible with a toothbrush. I would love your opinion!

 

 

 

 

 

 

En wanneer ik het verder schoonmaak zien we dit. Echter zeer moeilijk,  het fossiel lost snel op met het kalkgesteente:

 

 

And abother big piece:

 

Edited June 5, 2023 by Mart1980

[rocket]

nice, I do not think it is wood, reminds me a bit to flow channels I know from there, but they are a little bit different

Could you do a goooooood close-up-picture of the fracture surface? I cropped the pic but it is not clear to me

thanks

[Mart1980]

@rocket I did my best 

 

 

 

 

 

What also strikes me are the typical bulges that all pieces show. I found 5 pieces individually and they all have this. That can't be a coincidence, can it?

 

 

 

[Mahnmut]

Hello Mart 1980,

anything can be coincidence. Or it can be a feature of the geological process that created all the pieces. 

I am not familiar with the location, but my first guess would have been burrow traces. Or maybe limb casts, not the wood itself but sediment that took its place?

Best Regards,

J