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Various species are
found in the Svalbard,
Valhallfonna Formation,
Olenidsletta, Member, of Spitzbergen, Norway, the
Megistaspis (Paramegistaspis) planilimbata...
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trilobite from the
Middle Arenig-aged Svalbard,
Valhallfonna Formation,
Olenidsletta, Member, of Spitzbergen,
Norway (G. catillus), and the
Upper Arenig-aged...
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Ordovician of
Svalbard (Psephosthenaspis
microspinosa small s****y zone,
Olenidsletta Member,
Valhallfonna Formation, Ny friesland, 471.8-457.5 Ma) The headshield...
- (Ibexian 488.3 - 471.8 Mya,
Psephosthenaspis nasuta trilobite zone,
Olenidsletta Member,
Valhallfonna Formation, Ny Friesland, 79.8° N, 17.8° E). Trinodus...
