Divide between Troy Canyon and South Fork of American Canyon (rotelliformis): Illyrian, Nevada
collected by J.P. Smith

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Ostreida - Halobiidae
Daonella americana n. sp. Smith 1914
Cephalopoda - Aulacoceratida - Xiphoteuthididae
Atractites clavatulus n. sp. Smith 1914
Cephalopoda - Ceratitida - Ceratitidae
Eutomoceras (Halilucites) dalli n. sp. Smith 1914
Hungarites fittingensis n. sp. Smith 1914
Not pl 29, figs 12-14 (= ?Eutomoceras dunni)
Eutomoceras lahontanum n. sp. Smith 1914
(1 measurement)
Ceratites ecarinatus Hauer 1896
    = Paraceratites vogdesi Smith 1904
Silberling and Nichols 1982
Ceratites fissicostatus Hauer 1896
    = Paraceratites vogdesi Smith 1904
Silberling and Nichols 1982
Ceratites (Paraceratites) trinodosus (von Mojsisovics 1878)
Specimens in pl 39, fig 6; pl 52, figs 15-18 are P. clarkei
    = Paraceratites vogdesi Smith 1904
Silberling and Nichols 1982
Ceratites (Paraceratites) vogdesi n. sp. (Smith 1904)
(1 measurement)
Ceratites crassicornu n. sp. Smith 1914
(1 measurement)
Ceratites kingi n. sp. Smith 1914
(1 measurement)
Ceratites haguei n. sp. Smith 1914
(1 measurement)
Ceratites (Paraceratites) trojanus n. sp. Smith 1914
(1 measurement)
Ceratites (Paraceratites) cricki n. sp. Smith 1914
(1 measurement)
Ceratites (Paraceratites) burckhardti n. sp. Smith 1914
Ceratites (Paraceratites) taurus n. sp. Smith 1914
Ceratites (Paraceratites) newberryi Smith 1914
Ceratites beecheri Smith 1914
(1 measurement)
    = Paraceratites clarkei Smith 1914
Silberling and Nichols 1982
Nevadites fontainei Smith 1914
    = Paraceratites clarkei Smith 1914
Silberling and Nichols 1982
Ceratites (Paraceratites) clarkei n. sp. Smith 1914
Ceratites (Paraceratites) wardi n. sp. Smith 1914
(1 measurement)
Ceratites rectangularis Smith 1914
Beyrichites rotelliformis (Meek 1877)
Hyatt and Smith 1905
Beyrichites tenuis n. sp. Smith 1914
Ceratites (Phillipites) argentarius n. sp. Smith 1914
(1 measurement)
Ceratites (Gymnotoceras) blakei (Gabb 1864)
Hyatt and Smith 1905
Not pl 55, figs 1-5,7-9 (or pl 14, fig 10b; pl 65, figs 14-16 in Smith, 1914) = Parafrechites meeki
Beyrichites falciformis n. sp. Smith 1914
Ceratites (Phillipites) lawsoni n. sp. Smith 1914
(1 measurement)
Cephalopoda - Ceratitida - Aplococeratidae
Dinarites desertorum n. sp. Smith 1914
(1 measurement)
? Dinarites pygmaeus n. sp. Smith 1914
Cephalopoda - Ceratitida - Proteusitidae
Tropigastrites lahontanus n. sp. Smith 1914
Only specimen in pl 19, figs 14-15a
Tropigastrites neumayri
Specimens on pl 18, figs 15-23
    = Tropigastrites lahontanus Smith 1914
Silberling and Nichols 1982
Tropigastrites halli (Mojsisovics 1896)
Specimens in pl 18, figs 11-14; pl 88, figs 14,15
    = Tropigastrites lahontanus Smith 1914
Silberling and Nichols 1982
Tropigastrites rothpletzi n. sp. Smith 1914
(1 measurement)
Gymnites (Anagymnites) rosenbergi n. sp. Smith 1914
Cephalopoda - Ceratitida - Gymnitidae
Gymnites (Anagymnites) acutus Hauer 1892
    = ? Tropigymnites cf. planorbis Hauer 1896
Silberling and Nichols 1982
see common names

Geography
Country:United States State/province:Nevada
Coordinates: 40.3° North, 118.1° West (view map)
Paleocoordinates:11.2° North, 42.3° 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: Illyrian Ammonoid zone:  rotelliformis
Age range of interval: 243.8 - 242 m.y. ago
Stratigraphy
Stratigraphic resolution:group of beds
Stratigraphy comments: Smith's collections were made from float; specimens are divided here based on ages from later bedrock-controlled sampling (Silberling & Nichols, 1982; Monnet & Bucher, 2005).
Lithology and environment
Primary lithology: lithified silty "limestone"
Includes fossils?Y
Environment:marine 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:J.P. Smith
Metadata
Also known as:Fossil Hill
Database number:142669
Authorizer:M. Clapham, D. Bottjer Enterer:M. Clapham, C. Powers
Research group:marine invertebrate
Created:2013-04-15 16:21:33 Last modified:2013-04-15 01:21:33
Access level:the public Released:2013-04-15 16:21:33
Creative Commons license:CC BY
Reference information

Primary reference:
8848. J. P. Smith. 1914. The Middle Triassic marine invertebrate faunas of North America. United States Geological Survey Professional Paper 83:1-254 [D. Bottjer/C. Powers/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]