Trilobite from Morocco

[Tony G.]

I bought this Trilobite from Morocco about 11 years ago.  I know there are many fakes out there, so I am asking for your opinions.  There is a repaired crack through the center of the matrix which made me believe that it was real.  You can see the crack in the photo, it goes from the upper left, through the trilobite, and over to center right.  If it is real, is the black color natural to this type of trilobite from Morocco or has it been painted?

[sseth]

Based on what I can see from the picture I think it is real.  A few different angles would help us know for sure.  It is called a Coltraenia, although some still refer to is as a Treveropyge.

 

Geological Time: Devonian
 Fossil Site: Hamar Laghdad Formation, Djebel Issoumour, Alnif , Morocco

[piranha]

There are 3 described species of Coltraneia from Morocco: Coltraneia berbera, C. effelesa, C. oufatenensis.

The posted example is: C. oufatenensis, based on the number of axial rings and pleural ribs on the pygidium.  

Listed below are the known recorded localities.  Coltraneia oufatenensis comes from the El Otfal Formation.

 

Tazoulaït Formation, Teherajat, Jbel Oufaten

Timrhanrhart Formation, northeast of Jbel Gara el Zguilma

El Otfal Formation, Oufatène, Ma'der, south of Jbel Issoumour

 

 

Basse, M. (2012)
Trilobites Africae: Catalogus typorum. 
Fossilium Catalogus I: Animalia, 150:1-311

 

Chatterton, B.D.E., Fortey, R.A., Brett, K.D., Gibb, S.L, & McKellar, R.C. (2006)
Trilobites from the upper Lower to Middle Devonian Timrhanrhart Formation, Jbel Gara et Zguilma, southern Morocco.
Palaeontographica Canadiana, 25:1-177

 

Morzadec, Pierre (2001)
Les Trilobites Asteropyginae du Dévonien de l'Anti-Atlas (Maroc).
Asteropyginae Trilobites from the Devonian of the Anti-Atlas (Morocco).
Palaeontographica Abt.A, 262:53-85

[Fossildude19]

I see two cracks running through this trilobite. 

Good indication of it being real. 

 

        

[sseth]

On 2/10/2017 at 1:56 PM, piranha said:

There are 3 described species of Coltraneia from Morocco: Coltraneia berbera, C. effelesa, C. oufatenensis.

The posted example is: C. oufatenensis, based on the number of axial rings and pleural ribs on the pygidium.  

Listed below are the known recorded localities.  Coltraneia oufatenensis comes from the El Otfal Formation.

 

Tazoulaït Formation, Teherajat, Jbel Oufaten

Timrhanrhart Formation, northeast of Jbel Gara el Zguilma

El Otfal Formation, Oufatène, Ma'der, south of Jbel Issoumour

 

 

Basse, M. (2012)
Trilobites Africae: Catalogus typorum. 
Fossilium Catalogus I: Animalia, 150:1-311

 

Chatterton, B.D.E., Fortey, R.A., Brett, K.D., Gibb, S.L, & McKellar, R.C. (2006)
Trilobites from the upper Lower to Middle Devonian Timrhanrhart Formation, Jbel Gara et Zguilma, southern Morocco.
Palaeontographica Canadiana, 25:1-177

 

Morzadec, Pierre (2001)
Les Trilobites Asteropyginae du Dévonien de l'Anti-Atlas (Maroc).
Asteropyginae Trilobites from the Devonian of the Anti-Atlas (Morocco).
Palaeontographica Abt.A, 262:53-85

 

 

You are correct.  I copied the wrong information from my sheet.

 

Coltraneia oufatenensis (Morzadec, 2001)
Lower Devonian (Upper Emsian)
El Otfal Formation, 
Jebel Oufatène, Morocco