West of New Pass Mines, Desatoya Mountains: Bithynian - Illyrian, Nevada
collected by Fortieth Parallel Expedition 1867-1869

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ceratitida - Acrochordiceratidae
Acrochordiceras hyatti n. gen., n. sp. Meek 1877
Cephalopoda - Ceratitida - Ceratitidae
Eutomoceras laubei n. gen., n. sp. Meek 1877
Bivalvia - Ostreida - Halobiidae
Halobia (Daonella) lommeli (Wissmann 1841)
    = Daonella ? dubia Gabb 1864
Silberling and Nichols 1982
see common names

Geography
Country:United States State/province:Nevada
Coordinates: 39.6° North, 117.5° West (view map)
Paleocoordinates:10.1° North, 41.7° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Triassic Epoch: Middle Triassic
Stage: Anisian 10 m.y. bin: Triassic 2
Key time interval: Bithynian - Illyrian
Age range of interval: 245.5 - 242 m.y. ago
Stratigraphy
Stratigraphic resolution:group of beds
Stratigraphy comments: Ammonoids of the hyatti and meeki zones
Lithology and environment
Primary lithology: lithified "limestone"
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collectors:Fortieth Parallel Expedition Collection dates:1867-1869
Metadata
Database number:142622
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2013-04-15 02:09:20 Last modified:2013-04-14 11:53:43
Access level:the public Released:2013-04-15 02:09:20
Creative Commons license:CC BY
Reference information

Primary reference:
16190. F. B. Meek. 1877. Part I. Palaeontology. Report of the Geological Exploration of the Fortieth Parallel 4:1-197 [P. Wagner/P. Wagner/M. Clapham]

Secondary references:

10526 N. J. Silberling and K. M. Nichols. 1982. Middle Triassic Molluscan Fossils of Biostratigraphic Significance from the Humboldt Range, Northwestern Nevada. Geological Survey Professional Paper 1207 [A. McGowan/A. McGowan/A. McGowan]