30139 - Top Rare 0.46 Inch Isoteloides flexus Lower Ordovician Trilobite - Utah USA Stapeleyella inconstans Its discovery was made in

Its discovery was made in the most basal part of the stratigraphic levels corresponding to the red sandstones of the upper member of the Ifezouane Formation

Search for other: Carbonaceous chondrites

Fe-Ni metal contains ~1 wt% Silicon

20 apfu and high Al 0

30139 - Top Rare 0.46 Inch Isoteloides flexus Lower Ordovician Trilobite - Utah USA Stapeleyella inconstans Its discovery was made inIsoteloides flexus, Hintze 1952 (trilobite) Trilobita Asaphida Asaphidae PaleoDB taxon number: 177210 Full reference: L. F. Hintze. 1952. Lower Ordovician trilobites from western Utah and eastern Nevadea. Utah Geological and Mineralogical Survey Bulletin 48: 249 p. Belongs to Isoteloides according to L. F. Hintze 1952 Sister taxa: Isoteloides canalis, Isoteloides peri, Isoteloides polaris, Isoteloides saxosimontis Type specimen: 26322 (AMNH), a