30131 - Museum Grade Beckwithia type Cambrian Aglaspid Middle Cambrian Utah Niobella lindstroemi It has been removed and

It has been removed and prepared from a nodule-concretion

Beautiful and authentic example of 0

but it is a false appearance

a quite common species in the phosphate quarries of the Ouled Abdoun Basin (Morocco)

30131 - Museum Grade Beckwithia type Cambrian Aglaspid Middle Cambrian Utah Niobella lindstroemi It has been removed andAglaspidida is an extinct order of aquatic arthropods that were once regarded as primitive chelicerates. However, anatomical comparisons demonstrate that the aglaspidids cannot be accommodated within the chelicerates, and that they lie instead within the Artiopoda, thus placing them closer to the trilobites. Aglaspidida contains the subgroups Aglaspididae and Tremaglaspididae, which are distinguished by the presence of acute spinose genal angles and a