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TOP- ANOMALOCARID HEAD FOSSIL Aegirocassis benmoulai. ORDOVICIAN.MOROCCO.nº50
$ 633.6
- Description
- Size Guide
Description
---EXCELLENT FOSSIL ---
the caparace of the head in its entire dorsal part, although it is somewhat covered by a matrix that can be cleaned. Magnificent conservation of the fossil in which the ventral lateral extension can be seen on one of its sides.
The complete positive is presented, which can be cleaned more, exposing hidden parts of the fossil, and another part with the negative.
size positive fossil: 15 cm. matrix: 23x14x2,5 cm. weight: 1.440 g.
Anomalocaris .
Aegirocassis benmoulai.
Ordovician.Fezouata formation. Zagora. Morocco.
Aegirocassis
is an extinct genus of anomalocarid arthropod belonging to the family Hurdiidae that lived 480 million years ago during the early Ordovician. It is known by a single species, Aegirocassis benmoulai. Van Roy initiated scientific study of the fossil, the earliest known of a "giant" filter-feeder discovered to date. Aegirocassis is considered to have evolved from early predatory anomalocarids.At the time of its existence, A. benmoulai was possibly the largest animal in the world. The length was described as exceeding 2.0 metres (6.6 ft) in the scientific journal Nature.
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