indicating that this specimen has affinities with the depleted compositional group of shergottites
Helioproetus
central and eastern Anti-Atlas
due to their distinctively bumpy surface and pronounced ridges making them resemble a tractor tire
Emu Bay Shale
30372 - Top Rare 0.91 Inch Wujiajiania southerlandi Upper Cambrian Trilobite - Canada Vanadinite indicating that this specimen hasWujiajiania, Lu and Lin 1980 (trilobite) Trilobita Olenidae PaleoDB taxon number: 21044 Parent taxon: Olenidae according to P. A. Jell and J. M. Adrain 2002 See also Sepkoski 2002 Sister taxa: Acerocare, Acerocarina, Aciculolenus, Angelina, Apoplanias, Balnibarbiinae, Beltella, Boeckaspis, Chekiangaspis, Ctenopyge, Euonchonotina, Hancrania, Highgatella, Huangshiaspis, Hypermecaspidinae, Hypermecaspis, Inkouia, Jujuyaspis, Leiobienvillia, Leptobenthos,