Aristoharpes Trilobite from Morocco

Aristoharpes sp (Harpes cf perradiatus)

Trilobites Order Harpetida

Geological Time: Lower Devonian

Size: 50 mm

Fossil Site: Hamar Laghdad Formation, Atlas Mountains, Morocco

Description: Harpetida only recently became the 9th Order of Trilobita, having been split from the Ptychopariida (Ebach & McNamara 2002). Formerly considered a suborder of the Ptychopariida, they had been distinguished from other members by marginal sutures, lack of a rostral plate, and presence of the Harpid fringe. This is classic member of the Order, Harpes sp. (Order: Harpetida; Family: Harpetidae; Species: Harpes cf. perradiatus) from Devonian-time, Morocco.

Harpes is much harder to acquire than most Moroccan trilobites, and tend to be poorly preserved, especially the Harpid fringe. This one is in very good condition.

click fossil pictures to enlarge


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