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Basseiarges mellishae Trilobite 74mm


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A recent fossil discovered and prepared in North Africa, of this 'pan shaped' arthropod from the couché rouge [red layer] fossil site of the western desert of Morocco. The careful preparation of the carapace displays exceedingly well on the fossilised seafloor; matrix block. The invertebrate has all the morphology of the type intact, postulated lumps and bumps on the genal spines, along with stout stubby spines protruding from the thoracic regions and pygidium (tail). A fascinating feature of this unique block is the second individual or the track of the arthropod across the fossilised seabed imprinted as it moved, the outline of what appears to be the pygidium can be seen just behind the little arthropod.

Genus: Basseiarges mellishae (Lichida, Family Lichidae, Subfamily Trochurinae).
Age: Palaeozoic era, Middle Devonian period, approximately 395 to 380 million years.
Origin: Jorf, Tinejdad, Province of Er-rachidia, Morocco, North Africa.

Basseiarges mellishae measurement.
Length: 5.8 cm
Width: 7.4 cm
Depth: 2.6 cm

Overall measurement.
Height: 2.4 cm
Width: 2 cm
Depth: 3 cm

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Basseiarges mellishae trilobite dating back to the Palaeozoic era, middle Devonian period, 395 million years. Originating from the fossil site, near Jorf, Tinejdad, Morocco, North Africa. A fine Basseiarges mellishae trilobite with crab-like glabella spines outstretched away from the body which enabled the thoracic segments and spines to be cleaned of all limestone rock and be individually visible. The thoracic segments well-detailed post the preparators technically skilful laboratory work. The pygidium with its stubby spines is complete; the whole carapace is an excellent fossil specimen arthropod.

The preparator is one of our associates and Moroccan team, the trilobite was personally hand collected by our fossil digger and technician near Tinejdad and has been careful with the aid of the latest air abrasive techniques cleaned for display. We guarantee authenticity and quality with all our specimens this the little Akantharges mbareki arthropod trilobite is no exception to this guarantee. It requires many hours of diligent and patient concentration with a pneumatic pen to clean the overburden of limestone rock away from the specimen without damaging the trilobite. The rarity of this find coupled with the technical skill required to extract and prepare it elevates this specimen into the upper levels of a study and a collecting specimen.

The bedrock on which the arthropod has lain in for millions of years has been treated in a naturalistic way and also partially etch-worked around the trilobite to highlight the specimens dark exoskeleton against the grey limestone block to give a more dramatic display. The trilobite genus Akantharges [Trochurinae] recently discovered, in 2013 a published paper by Corbacho and López- Soriano documents the new genus, this was revised in 2014, a second similar genus type Basseiarges mellisha was also documented.