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Eldonia berbera

Era: Paleozoic

Period: Upper Ordovician

Stage: Sandbian-Katian (458.4 - 445.2 ma)

Formation: Ktaoua

Location: Bou Nemrou, El Kaid Errami, Errachidia, Drâa-Tafilalet (Morocco)

Coordinates: 31°19'33.8"N 4°31'33.3"W (Erfoud-Msissi Road)

Eldonia Measurements: 73 x 63mm / 2,87" x 2,48"

Matrix measurements: 160 x 135 x 22mm / 6,3" x 5,31" x 0,87"

Weight: 942g / 2,077 lb

Description: Eldonia is an extinct soft-bodied cambroernid animal of unknown affinity, best known from the Fossil Ridge outcrops of the Burgess Shale, particularly in the "Great Eldonia Sheet" at Walcott Quarry. It takes the shape of a round, medusoid disk (which originally led to suggestions of a jellyfish affinity) with a C-shaped gut trace. The species is also found in the Chengjiang biota, and in the Upper Ordovician strata of Morocco. Walcott's original interpretation as a holothurian was quickly disputed. Alternative affinities to suggest, which did not stand the test of time, included siphonophores and a coelenterate jellyfish. (Source: famdom Prehistory)


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Eldonia berbera

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