Psychopyge termierorum Museum Trilobite from Morocco

With Pathological Rostrum

Psychopyge termierorum

Trilobites Order Phacopida, Superfamily Acastoidea, Family Acastidae

Geological Time: Middle Devonian

Size: Trilobite is 55 mm long (overall with spines and rostrum) by 52 mm wide at genals on a 110 by 100 mm matrix

Fossil Site: Jebel Ofaten, Morocco

Code: 18023

Price: Sold

Psychopyge termierorum Museum Trilobite from MoroccoDescription: This trilobite is a member of the Order Phacopida, Family Acastidae from the Devonian deposits of Ofaten, Morocco known as Psychopyge termierorum Psychopyge termierorum(see my other offerings for an example of Psychopyge elegans), and another Psychopyge termierorum. What is most unusual about this one is the exceptionally truncated rostrum. For some reason Psychopyge had atendency to pathology of this feature. I have seen one bifurcated at the tip, another twice as wide as normal giving the appearance of a duck’s bill, and an elongated version which was fully the length of the body. This one is only the SECOND I have seen in nearly 15 years, so it is either a new species (I have recently seen examples of Quadrops that have a solid rostrum much like a shovel), or a pathology. The other was from Issoumour and found in 2004. I am inclined to think a pathology is more likely than a new species, but with such an extremely limited sample size it is hard to be sure.

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