Belted Range, Carrara Fm, Red Pass Limestone Mbr. (USGS 4436-CO) (Cambrian of the United States)

Where: Nevada (37.3° N, 116.1° W: paleocoordinates 2.0° S, 94.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Albertella trilobite zone, Red Pass Limestone Member (Carrara Formation), Delamaran (511.2 - 506.5 Ma)

• The upper few meters of the member are locally rich in trilobites of the Zacanthoidid Zonule of the Albertella Zone (p. 59) in the Groom Range and the Nevada Test Site.

• member-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lime mudstone

• The Red Pass Limestone Member generally forms a

•prominent cliff and consists of burrowed, oncolitic, and

•skeletal-fragment lime mudstones, oolite, and a variety of

•laminated lime mudstones and fenestral limestones.

Size classes: macrofossils, mesofossils, microfossils

Primary reference: A. R. Palmer and R. B. Halley. 1979. Physical Stratigraphy and Trilobite Biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the Southern Great Basin. United States Geological Survey Professional Paper 1047:1-131 [W. Kiessling/M. Krause/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 149390: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 03.08.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Corynexochida - Oryctocephalidae
Oryctocephalidae sp. Beecher 1897 trilobite
 Corynexochida - Dorypygidae
Ogygopsis typicalis Resser 1979 trilobite
 Ptychopariida - Ptychopariidae
Elrathina antiqua Palmer and Halley 1979 trilobite
 Ptychopariida - Alokistocaridae
Chancia ? maladensis Resser 1939 trilobite
Artiopoda
 Agnostida - Eodiscidae
Pagetia rugosa Rasetti 1966
 Agnostida - Peronopsidae
Peronopsis sp. Corda 1847