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Emigrant - Lower, Esmeralda County, Nevada, USA

FormationEmigrant
MemberLower
Age:513 - 505 Ma
Cambrian
IntervalDelamaran
Lithologyshale/mudstone, "shale", "limestone"/mudstone, "limestone"
Number of Collections4
Number of Occurrences19

Recorded Sample Locations

LocationRegionStratigraphic Name
Litho #1Esmeralda County, Nevada, USAEmigrant - Lower

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Emigrant485 - 470 Ma
Paleozoic
limestone, dolomite, mudstone, lime mudstone, lime mudstone/"shale", "siliciclastic", "shale", "shale"/"limestone", "limestone"/siltstone, "shale"/dolomite218

Recorded Fossils

Accepted NameHierarchyAge
Amecephalus sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Alokistocaridae : Amecephalus513 - 505 Ma
Cambrian
Poliella sp.
genus
6Animalia : Arthropoda : Trilobita : Corynexochida : Dolichometopidae : Poliella513 - 505 Ma
Cambrian
Wenkchemnia sp.
genus
6Animalia : Arthropoda : Trilobita : Corynexochida : Dolichometopidae : Wenkchemnia513 - 505 Ma
Cambrian
Microryctocara nevadensis
species
7Animalia : Arthropoda : Trilobita : Corynexochida : Oryctocephalidae : Microryctocara : Microryctocara nevadensis513 - 505 Ma
Cambrian
Oryctocephalus sp.
genus
6Animalia : Arthropoda : Trilobita : Corynexochida : Oryctocephalidae : Oryctocephalus513 - 505 Ma
Cambrian
Oryctocephalus indicus
species
7Animalia : Arthropoda : Trilobita : Corynexochida : Oryctocephalidae : Oryctocephalus : Oryctocephalus indicus513 - 505 Ma
Cambrian
Onchocephalus sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Antagmidae : Onchocephalus513 - 505 Ma
Cambrian
Eokochaspis sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Ptychopariidae : Eokochaspis513 - 505 Ma
Cambrian
Eokochaspis nodosa
species
7Animalia : Arthropoda : Trilobita : Ptychopariida : Ptychopariidae : Eokochaspis : Eokochaspis nodosa513 - 505 Ma
Cambrian
Kochina sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Alokistocaridae : Kochina513 - 505 Ma
Cambrian
Syspacephalus sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Ptychopariidae : Syspacephalus513 - 505 Ma
Cambrian
Bolbolenellus sp.
genus
6Animalia : Arthropoda : Trilobita : Redlichiida : Olenellidae : Bolbolenellus516 - 513 Ma
Cambrian
Olenellus sp.
genus
6Animalia : Arthropoda : Trilobita : Redlichiida : Olenellidae : Olenellus516 - 513 Ma
Cambrian

References

McCollum L. B., Sundberg F. A. (1999) Biostratigraphy of the traditional Lower-Middle Cambrian boundary interval in the outher shelf Emigrant Formation, Split Mountain East Section, Esmeralda County, Nevada, Laurentai 99: V field conference of the Cambrian Stage Subdivision Working Group, International Subcomission on Cambrian Stratigraphy, 29-34
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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