Proetopeltis and Barrandeops Moroccan Trilobites

with Unusual Red Color Preservation

Proetopeltis waldschmidti erfoudana

Trilobites Order Proetida, Family Tropidocoryphidae

Barrandeops sp

Trilobites Order Phacopida, Family Phacopidae

Geological Time: Lower to Middle Devonian, Emsian/Eifelian Stage

Size: Proetopeltis: 17 mm long by 10 mm wide; Barrandeops: 55 mm (curve measure) by 30 mm wide on a 75 mm by 105 mm matrix

Fossil Site: Hmar Lakhdad, Morocco

Fossil Code: 18089

Price: $235.00


Proetopeltis and Barrandeops Moroccan Trilobites Description: This is the first example of the genus Proeopeltis found with Barrandeops I have been able to offer. It comes from a new deposit in a location known as Hmar Lakhdad in Morocco. Hmar lakhdad means “red cheeks” in Arabic, an allusion to the rich wine red color preserved in the specimens from this location, a consequence of high levels of iron in the silicified exoskeleton. Interestingly enough, phacopids from this site have been found that possess the red color to the exoskeleton and green eyes, a consequence of differential silicification and weathering of the iron and manganese absorbed by the specimen during diagenesis.

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Proetopeltis and Barrandeops Moroccan Trilobites

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