Trilobites of the Marjum Formation

The Marjum Formation is just above the Wheeler Shale.

HOUSE RANGE, MILLARD CO., UTAH

Trilobites:

Altiocculus sp.

Asaphiscus wheeleri

Baltagnostus eurypyx

Bathyuriscus elegans

Bathyuriscus fimbriatus

Bolaspidella contracta

Bolaspidella housensis

Bolaspidella wellsvillensis

Bolaspidella sp.

Brachyaspidion microps

Cotalagnostus laevus

Elrathia alapyge

Elrathia kingii

Elrathia marjumi
Elrathina sp. (= Ptychoparella)
Hemirhodon amplipyge

Homagnostus incertus

Holteria problematica

Hypagnostus parvifrons

Iniospheniscus talis

Jenkinsonia varga

Kootenia sp

Lejopyge acantha

Lejopyge calva

Lejopyge lundgreni

Lejopyge rigbyi

Linguagnostus perplexus

Marjumia callas

Marjumia typa
Modocia brevispina

Modocia elongata

Modocia laevinucha

Modocia nuchaspina

Modocia typicalis

Modocia sp

Modocia sp

Olenoides inflatus

Olenoides marjumensis

Olenoides nevadensis

Olenoides pugio

Olenoides superbus

Olenoides n. sp. (there is some debate on whether the unit this is from is Marjum or Chisholm)

Onymagnostus hybridus

Orria elegans

Peronopsis ferox

Peronopsis incertus

Peronopsis interstricta

Peronopsis segmenta

Ptychagnostus affinus

Ptychagnostus ankathodes

Ptychagnostus atavus

Ptychagnostus germanus

Ptychagnostus hintzei

Ptychagnostus hybridus

Ptychagnostus michaeli

Ptychagnostus occultatus

Ptychagnostus punctuosus

Schmalenseeia sp.

Spencia typicalis

Trymataspis depressa

Trymataspis lomaleie

Trymataspis pristina

Utagnostus trispinulus

Utaspis marjumensis

Localities:

-Marjum Pass, House Range, Millard Co., Utah

-Marjum Flats, House Range, Millard Co., Utah

-near Kells Knoll, House Range, Millard Co., Utah

-Red Wash, House Range, Millard Co., Utah

*researched and compiled by James Cook, Andrew Milner and Kevin D. Brett