ID cf./help for Corynexochida species from Morocco.

[mediterranic]

Hello.

 

Can this be an Ectillaenus? If yes, wich species?

 

 

[mediterranic]

@piranha

[piranha]

Similar to: Ectillaenus cf. benignensis

 

 

[mediterranic]

Hello guys. Do you think this one can be another Ectillaenus cf. benignensis?

 

No location. Purchased on a souk (market).

The specimen has 9,5 cm.

Thanks in advance.

Miguel

[mediterranic]

I think Ràbano et al (2014) answered already to my previous question: "Illaenid trilobites were relatively scarce in south-polar peri-Gondwanan areas during the Ordovician, with all their African occurrences restricted to the Middle and Upper Ordovician of Morocco. At a specific level, only the Bohemian form Ectillaenus benignensis (Novak) has been positively identified from the Middle Ordovician of that region".

 

Is there something more or more recent about it?

 

@piranha ?

 

Thank you to everybody

[piranha]

Here are previously reported species:

 

Ectillaenus cf. perovalis  

 

Neltner, L. (1938)
Études géologiques dans le Sud marocain (Haut Atlas et Anti-Atlas). 
Notes et Mémoires du Service des Mines et de la Carte Géologique du Maroc, 42:1-298

 

Ectillaenus cf. hughesi 

 

Destombes, J., Hollard, H., &  Willefert, S. (1985)
Lower Palaeozoic rocks of Morocco. pp. 91-336
In: Holland, C.H. (ed.)

Lower Palaeozoic rocks of the World. Vol.4. Lower Palaeozoic of north-western and west-central Africa.
John Wiley & Sons Ltd. Publishing, 512 pp.

[mediterranic]

Hi @piranha.

Thank you for your answer.

Do you have a good match for any of the three reported to Morocco with my specimen?

[piranha]

16 minutes ago, mediterranic said:

Do you have a good match for any of the three reported to Morocco with my specimen?

 

 

I wanted you to have a list of all the species reported from Morocco.  According to the most recent paper you cited, they are all classified as Ectillaenus benignensis.  

[mediterranic]

Ah ok, now I understand. Thanks a lot.

[mediterranic]

Btw, so they are Ectillaenus benignensis and not Ectillaenus cf. benignensis, right?

[piranha]

10 minutes ago, mediterranic said:

Btw, so they are Ectillaenus benignensis and not Ectillaenus cf. benignensis, right?

 

 

Both can be used.  I applied cf. to the first one because the pygidium is more elongate compared to other examples of Ectillaenus benignensis.  If you want to be more conservative, then Ectillaenus sp. would also be appropriate for the first specimen.