Name the trilobite

[Andres_ra]

I recently bought this trilobite fossil at a christmas market in Zurich.

 

Could anyone name it fully, order and maybe time period?

 

I'm just a curious amateur btw.

[Fossildude19]

Hello, and Welcome to the Forum. 

What is the size of the trilobite?

My first thought was that it is a Gerastos granulosus, from the Devonian of Morocco.

Wait for some other opinions, though. 

Regards,

 

EDIT: Found this paper online - might be worth a read - check page 39 - LINK

Maybe  Diademaproetus praecursor???

[Andres_ra]

About 1 inch 

[piranha]

Gerastos granulosus is not a valid species in Morocco.

G. tuberculatus marocensis is the most common species.

This chart shows the different species of Moroccan Gerastos.

 

 

Gibb, S.L., & Chatterton, B.D.E. (2010)
Gerastos (Order Proetida; Class Trilobita) from the Lower to Middle Devonian of the southern Moroccan Anti-Atlas region.
Palaeontographica Canadiana, 30:1-89

 

 

[Fossildude19]

Thanks for the info, Scott. 

In doing some Googling, I was starting to come to the conclusion that  Gerastos granulosus was not a valid species for Morocco.

Another commonly misused name by vendors?  
Regards, 

[Cluros]

It looks like Proteus sp. from the Devonian of Morocco. It fits the size and cephalon shape nicely.

[piranha]

7 hours ago, Fossildude19 said:

...Another commonly misused name by vendors?...

 

 

The name was originally used by Alberti 1970.  He designated three species as: 'A', 'B', 'C',  aff. granulosus

 

Alberti, G.K.B. (1970)
Trilobiten des jüngeren Siluriums sowie des Unter- und Mitteldevons. Part II.
Trilobites of the late Silurian, as well as the early and middle Devonian; part 2.
Abh. Der Senckenbergischen Naturforschenden Gesellschaft, 525:1-233

 

 

[Bguild]

To me it looks like a beat up Diademaproetus praecursor. The genal spines seem to be mostly worn/prepped away. At the very least you can say it belongs to the Proetida order.

[RJB]

I don't want to be a stick in the mud, but to me, it looks very carved?  Hope im wrong.

 

RB