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Gabbs - Mount Hyatt, Nevada, USA

FormationGabbs
MemberMount Hyatt
Age:209 - 201 Ma
Mesozoic
IntervalRhaetian
Tectonic SettingBack-arc basin
Lithologysiliciclastic, "limestone", siltstone/lime mudstone
Number of Collections8
Number of Occurrences31

Recorded Sample Locations

LocationRegionStratigraphic Name
Ferguson Hill sectionMineral County, Nevada, USAGabbs - Mount Hyatt
Reno DrawMineral County, Nevada, USAGabbs - Mount Hyatt
New York CanyonMineral County, Nevada, USAGabbs - Mount Hyatt
Milton CanyonNye County, Nevada, USAGabbs - Mount Hyatt
New York CanyonMineral County, Nevada, USAGabbs - Mount Hyatt

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Gabbs - Muller Canyon201 - 197 Ma
Early Jurassic
limestone/siltstone, siltstone, "limestone"/wackestone, "limestone", lime mudstone/siltstone, wackestone50
Sunrise - Ferguson Hill197 - 190 Ma
Early Jurassic
siltstone, "limestone", packstone, "siliciclastic", "limestone"/siltstone161

Recorded Fossils

Accepted NameHierarchyAge
Ostracoda
class
3Animalia : Arthropoda : Ostracoda208.5 - 201.3 Ma
Mesozoic
Chordata
phylum
2Animalia : Chordata208.5 - 201.3 Ma
Mesozoic
Conodonta
class
3Animalia : Chordata : Conodonta208.5 - 201.3 Ma
Mesozoic
Echinodermata
phylum
2Animalia : Echinodermata208.5 - 201.3 Ma
Mesozoic
Bivalvia
class
3Animalia : Mollusca : Bivalvia208.5 - 201.3 Ma
Mesozoic
Septocardia sp.
genus
6Animalia : Mollusca : Bivalvia : Cardiida : Cardiidae : Septocardia208.5 - 201.3 Ma
Mesozoic
Mesomiltha sp.
genus
6Animalia : Mollusca : Bivalvia : Lucinida : Lucinidae : Mesomiltha208.5 - 201.3 Ma
Mesozoic
Nucula sp.
genus
6Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Nucula208.5 - 201.3 Ma
Mesozoic
Chlamys sp.
genus
6Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys208.5 - 201.3 Ma
Mesozoic
Arcestes gigantogaleatus
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Arcestidae : Arcestes : Arcestes gigantogaleatus208.5 - 201.3 Ma
Mesozoic
Proarcestes nevadanus
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Arcestidae : Proarcestes : Proarcestes nevadanus208.5 - 201.3 Ma
Mesozoic
Choristoceras crickmayi
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Choristoceratidae : Choristoceras : Choristoceras crickmayi208.5 - 201.3 Ma
Mesozoic
Choristoceras marshi
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Choristoceratidae : Choristoceras : Choristoceras marshi208.5 - 201.3 Ma
Mesozoic
Choristoceras rhaeticum
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Choristoceratidae : Choristoceras : Choristoceras rhaeticum208.5 - 201.3 Ma
Mesozoic
Choristoceras robustum
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Choristoceratidae : Choristoceras : Choristoceras robustum208.5 - 201.3 Ma
Mesozoic
Choristoceras shoshonensis
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Choristoceratidae : Choristoceras : Choristoceras shoshonensis208.5 - 201.3 Ma
Mesozoic
Vandaites newyorkensis
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Choristoceratidae : Vandaites : Vandaites newyorkensis208.5 - 201.3 Ma
Mesozoic
Cycloceltites tozeri
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Cycloceltitidae : Cycloceltites : Cycloceltites tozeri208.5 - 201.3 Ma
Mesozoic
Rhacophyllites debilis
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Discophyllitidae : Rhacophyllites : Rhacophyllites debilis208.5 - 201.3 Ma
Mesozoic
Gastropoda
class
3Animalia : Mollusca : Gastropoda208.5 - 201.3 Ma
Mesozoic
Porifera
phylum
2Animalia : Porifera208.5 - 201.3 Ma
Mesozoic
Radiozoa
phylum
2Chromista : Radiozoa208.5 - 201.3 Ma
Mesozoic
Foraminifera
phylum
2Foraminifera208.5 - 201.3 Ma
Mesozoic

References

Taylor D. G., Guex J. (2002) The Triassic/Jurassic System boundary in the John Day Inlier, east-central Oregon, Oregon Geology 64, 3-28
Lucas S. G., Taylor D. G., et al (2007) The proposed global stratotype section and point for the base of the Jurassic system in the New York Canyon area, Nevada, USA, New Mexico Museum of Natural History and Science Bulletin 40, 139-168
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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