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Glossopleura gigantea 5.3" Trilobite, Spence Shale Formation, Hansen Canyon, Cambrian, Wellsville Mountains, Box Elder Co., Utah*

Hemirhodon amplipyge 3.9" Trilobite, Marjum Formation, Cambrian, Marjum Pass, House Range, Millard Co., Utah*

Zacanthoides grabaui 2.6" Trilobite, Spence Shale Formation, Anyimony Canyon, Cambrian, Wellsville Mountains, Box Elder Co., Utah*

Bathyuriscus elegans 1.7" Trilobite, Marjum Formation, Cambrian, Marjum Flats, House Range, Millard Co., Utah*

Pseudocybele altinasuta 1.75" Trilobite, Filmore Formation, Ordovician, House Range, Millard Co., Utah*

Amacephalus laticaudum 2.1" Trilobite, Spence Shale Formation, Anyimony Canyon, Cambrian, Wellsville Mountains, Box Elder Co., Utah*

Athabaskia wasatchensisi 1.3" Trilobite, Spence Shale Formation, Anyimony Canyon, Cambrian, Wellsville Mountains, Box Elder Co., Utah*

Athabaskia bithus 1.3" & Kootenia spencei 2" Trilobite, Spence Shale Formation, Anyimony Canyon, Cambrian, Wellsville Mountains, Box Elder Co., Utah*

Modocia typicalis 2.75" Trilobite, Marjum Formation, Cambrian, Marjum Flats, House Range, Millard Co., Utah

Athabaskia howelli 2" Trilobite, Spence Shale Formation, Miners Hollow, Cambrian, Wellsville Mountains, Box Elder Co., Utah

Kootenia spencei 2" Trilobite tangled in Algae, Spence Shale Formation, Cambrian, Miners Hollow, Wellsville Mountains, Box Elder Co., Utah

Olenellus chiefensis with Nephronellus gracillus and Olenellus gilberti Trilobites, Pioche Shale Formation, Cambrian, Ruin Wash, Chief Range, Lincoln Co., Nevada

Glossopleura bion 2" Trilobite, Spence Shale Formation, Cambrian, Miners Hollow, Wellsville Mountains, Box Elder Co., Utah

Greeops boothi 1" Trilobites, Devonian from Canada

Brachyaspidion microps Tiny trilobites, unusual large grouping, Wheeler Shale Formation, Cambrian, Swasey Springs, House Range, Millard Co., Utah

Dorypyge swasii? 1.75" Trilobites, Piersoin Cove Formation?, Cambrian, Drum Mountains, Millard Co., Utah*

Glossopleura n. sp. 2.6" Trilobite, Spence Shale Formation, Anyimony Canyon, Cambrian, Wellsville Mountains, Box Elder Co., Utah*

Asaphiscus wheeleri 2" Trilobite, Wheeler Formation, Cambrian, Collected at the southwest end of Antelope Mountain, House Range, Millard Co., Utah

Athabaskia bithus 3" Trilobite, Spence Shale Formation, Cambrian, Hansen Canyon, Wellsville Mountains, Box Elder Co., Utah

Zacanthoides grabaui 2" Trilobite, Spence Shale Formation, Cambrian, Miners Hollow, Wellsville Mountains, Box Elder Co., Utah

Amacephalus idahoensis 2" Trilobite, Spence Shale Formation, Cambrian, Miners Hollow, Wellsville Mountains, Box Elder Co., Utah

Bathyriscus fimbriatus 2" Trilobite, Marjum Formation, Cambrian, Collected near Kells Knoll, House Range, Millard Co., Utah

Modocia typicalis 1" Trilobite, Marjum Formation, Cambrian, Red Wash, House Range, Millard Co., Utah

Olenellus fremonti Trilobite cephalons, Pioche Shale Formation, Klondike Gap, Chief Range, Lincoln Co., Nevada

Amacephalus sp. 1" Trilobite, Spence Shale Formation, Cambrian, Antimony Canyon, Wellsville Mountains, Box Elder Co., Utah