Museum Psychopyge praestans Trilobite

Psychopyge praestans

Trilobites Order Phacopida, Superfamily Acastoidea, Family Acastidae

Geological Time: Uppermost Emsian Stage Early to Middle Devonian Transition

Size (25.4 mm = 1 inch): 85 mm long (overall tip of rostrum to tip of pygidial spines) by 43 mm wide at genals on a 120 by 80 mm matrix

Fossil Site: Foum Ziguid, Zagora , Morocco

Code: 18022

Price: Sold

Museum Psychopyge praestans TrilobiteDescription: This trilobite is a rare member of the Order Phacopida, Family Acastidae from the Devonian deposits of Foum Ziguid, Morocco first described in 2001 as Psychopyge praestans. Psychopyge praestans is an unusual member of the genus in that it displays a distinctive forked rostrum. This is a natural, not pathological trait of this species. While I have seen them pictured in publications, this is only the SECOND I have been able to offer. Notice the many pustules, intrapleural nodes, and fine eye facets on this large specimen, one that is a full one third larger than the only other example I have been able to secure.

Also see this Museum grade Psychopyge termierorum from Ofaten and a Psychopyge elegans from Djebel Issoumour.

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

Fossil Sales

click to enlarge




Fossil Mall Navigation:
l Home l Fossils for Sale Map l Museum and Rare Fossils l How to Buy Fossils l

Navigate by Fossil Category:
l Trilobites
l Ammonites l Fish Fossils l Invertebrate Fossils l
l Crinoids and Echinoderms l Insect Fossils l Dinosaur and Reptile Fossils l
l Cambrian Explosion Fossils l Plant Fossils l Stromatolites l
l Vertebrate Fossils l Fossil Amber l Trace & Ichnofossils l

l Fossils and Paleotological Science Information l