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rail-price-top · floating island · grid + stamp
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• Eocene of Spain (1 collection)
Rare rooted specimen
The entire mandible and cranial remains of this mosasaur species are extremely rare
England (Lingham−Soliar1993)
South Africa (6)
21161 - Premium Grade Soft Bodied Xiphosurid (Horseshoe Crab Ancestor) Lower Ordovician Shark • Eocene of Spain (1Xiphosurans 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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