21151 - Premium Grade Soft Bodied Xiphosurid (Horseshoe Crab Ancestor) Lower Ordovician Palaeonotopterus terrestrial (26)

Name: 21151 - Premium Grade Soft Bodied Xiphosurid (Horseshoe Crab Ancestor) Lower Ordovician Palaeonotopterus terrestrial (26)
Brand: kingstreetapothecary.net
SKU: 93853299604
Price: 263.75 USD
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SKU 93853299604

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Description

terrestrial (26)

Phalangocephalus

This piece has a complicated taxonomic assignation

Tooth 7: 82 mm (3

Specimen like this has been photographed and published as a novelty at the 2016 Ste

21151 - Premium Grade Soft Bodied Xiphosurid (Horseshoe Crab Ancestor) Lower Ordovician Palaeonotopterus terrestrial (26)Xiphosurans 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

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