21163 - Premium Grade Soft Bodied Xiphosurid (Horseshoe Crab Ancestor) Lower Ordovician Euloma not even published yet from

not even published yet from moroccan phosphates

~40% fine-grained matrix with phyllosilicates

which is the intermediate source of most fluorine-containing fine chemicals

University of Cincinnati (8 December 2015)

Neometacanthus

21163 - Premium Grade Soft Bodied Xiphosurid (Horseshoe Crab Ancestor) Lower Ordovician Euloma not even published yet fromXiphosurans are an order of arthropods related to arachnids, or, according to one recent study, actually arachnids. They are sometimes called horseshoe crabs (a name applied more specifically to the only extant family, Limulidae). They first appeared in the Tremadocian (Lower Ordovician) from Fezouata Fm in South Morocco. Currently, there are only four living species. They are members of the order Xiphosura, which contains two suborders, Xiphosurida