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Trilobite probably from Morocco


DPS Ammonite

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It's probably Flexicalymene ouzregui, from Morocco.

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The older literature reported 5 species of 'Calymene' from the Lower Devonian of Morocco, but those have all been reassigned to Gravicalymene.

Flexicalymene is the most common calymenid from the Ordovician of Morocco, but there are others.  Colpocoryphe has smooth pygidial flanks.

 

image.png.2ba75bb97753fe0da9b870a809729cc2.png

 

Colpocoryphe grandis figure from:

 

Destombes , Jacques 1966

Quelques Calymenina (Trilobitae) de l'Ordovicien moyen et supérieur de l'Anti-Atlas (Maroc).

Notes et Mémoires du Service Géologique du Maroc, t.26, 188:33-52

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@piranha , I thought the prominent "brow" was diagnostically significant.  Calymene meaning "beautiful Crescent" in reference to its glabella.  (head spinning)

Everything is generated through your own will power ~ Ray Bradbury
 

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image.thumb.png.1a3da40651ecca5a41acf11ad9e5a549.png

 

Historical context on the mysterious appendages of Calymene blumenbachii:

 

"Ironically, Walch made one important mistake based on the Dudley Fossil when he used Mortimer’s (1752) erroneous report of “feet” to confirm his principal idea that trilobites were not bivalved animals, but were arthropods with “testaceous feet hidden like crayfish” under the shell of their back.  Clearly, the Dudley Fossil was a critical component of Walch’s study, which, in turn, further enhanced its prominence in later research by others."

 

Mikulic, D.G., & Kluessendorf, J. 2007

Legacy of the Locust—Dudley and its famous trilobite Calymene blumenbachii. pp. 141-169

In: Mikulic, D.G., Landing, E., & Kluessendorf, J. (eds.)

Fabulous Fossils: 300 Years of Worldwide Research on Trilobites.

New York State Museum Bulletin, 507:1-248   PDF LINK

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12 hours ago, piranha said:

image.thumb.png.1a3da40651ecca5a41acf11ad9e5a549.png

 

Historical context on the mysterious appendages of Calymene blumenbachii:

 

"Ironically, Walch made one important mistake based on the Dudley Fossil when he used Mortimer’s (1752) erroneous report of “feet” to confirm his principal idea that trilobites were not bivalved animals, but were arthropods with “testaceous feet hidden like crayfish” under the shell of their back.  Clearly, the Dudley Fossil was a critical component of Walch’s study, which, in turn, further enhanced its prominence in later research by others."

 

Mikulic, D.G., & Kluessendorf, J. 2007

Legacy of the Locust—Dudley and its famous trilobite Calymene blumenbachii. pp. 141-169

In: Mikulic, D.G., Landing, E., & Kluessendorf, J. (eds.)

Fabulous Fossils: 300 Years of Worldwide Research on Trilobites.

New York State Museum Bulletin, 507:1-248   PDF LINK

"Designed for the early student, and those who have not made great progress in that science" 

Ouch.  True, but ouch.... :D

Everything is generated through your own will power ~ Ray Bradbury
 

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