Trilobite - Fossilised animal - Asaphellus sp. (No reserve price)

Trilobite fossil Asaphellus sp. on original matrix - Fezouata Formation. Species: Asaphellus sp. / Asaphellus Family: Asaphidae Locality: Fezouata Formation, Jbel Tijarfaïouine, near Zagora, Anti-Atlas, Morocco Geological age: Early Ordovician, Tremadocian (Upper), ca. 480 million years Formation: Fezouata Shale - Konservat-Lagerstätte of the Ordovician Description: Complete and natural specimen of Asaphellus 7 cm in length including matrix, preserved in dorsal view on the original matrix in a wedge. Features a large, smooth, semicircular cephalon, a thorax with 8 articulating segments, and a short pygidium, diagnostic characteristics of the genus. Preserves the original exoskeleton with natural red-oxide/orange intense coloration due to impregnation by iron oxides, typical and highly sought after from Fezouata preservation. Trilobation well defined with a raised central rachis and visible axial furrows. Original beige-brown olive-gray oily shale matrix of fine grain, with a natural wedge-shaped triangular fracture, not cut artificially. Fine mechanical preparation, with no reconstruction using resin or paint. Light conservation varnish to protect and highlight the natural color. Conservation status: Very good. Complete, without breaks, with the exoskeleton present at ~90%. Slight natural wear on the edge of the cephalon. 100% natural. Ref – cata 507

估價:$1.12

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