Enigmatic Psychopyge Species Trilobite

Psychopyge sp

Trilobites Order Phacopida, Superfamily Acastoidea, Family Acastidae

Geological Time: Uppermost Emsian Stage Early to Middle Devonian Transition

Size: Trilobite is 85 mm long (overall tip of rostrum to tip of pygidial spines) by 35 mm wide at genals on a 95 by 70 mm matrix

Fossil Site: Foum Ziguid, Zagora , Morocco

Code: 17110

Price: $1195.00

Psychopyge Species TrilobiteDescription: This trilobite is a member of the Order Phacopida, Family Acastidae from the Devonian deposits of Foum Ziguid, Morocco. To me it represents some features of several described tax, but corresponds directly to none. While it has the shortened central pygidial spine of Psychopyge elegans, it lacks the distinctive “step” at the base of the rostrum, and most of that species are from Issoumour. It does not have the elongated central pygidial spine of Psychopyge termierorum, the deeply notched rostrum of Psychopyge praestans, or the fine notch of P hammerorum. Let’s just call it Psychopyge sp. to be safe. Perhaps in the future a more complete assignment will be possible.

Reference: Palaeontographica Canadiana, No. 25, 2006, pp 31-33 and 112-117.

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