USGS Mesozoic D10104, Rattlesnake Ridge: Early/Lower Cenomanian, New Mexico
collected by E. R. Landis, S. C. Hook, and W. A. Cobban; J. R. Wright, D. E. Tabet, S. C. Hook, and W. A. Cobban; R. R. Cobban, S. C. Hook, and W. A. Cobban 1976, 1977, 1980

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Artica ? compacta
Cephalopoda - Ammonitida - Acanthoceratidae
Mantelliceras sp. Hyatt 1903
Cephalopoda - Ammonitida - Turrilitidae
aff. Turrilites costatus (Lamarck 1801)
Cephalopoda - Nautilida - Nautilidae
Cymatoceras sp. Hyatt 1884
Gastropoda - Turritellidae
cf. Turritella semiatimgranulata
Turritella sp. Lamarck 1799
Gastropoda - Tylostomatidae
Tylostoma harrisi
Bivalvia - Ostreida - Gryphaeidae
Exogyra clarki
Exogyra whitneyi
Bivalvia - Pectinida - Limidae
Lima shumardi
Bivalvia - Pectinida - Entoliidae
Syncyclonema sp. Meek 1864
Bivalvia - Pectinida - Neitheidae
Neithea texana
Bivalvia - Trigoniida - Megatrigoniidae
Pterotrigonia sp. van Hoepen 1929
Bivalvia - Pholadomyida - Pholadomyidae
cf. Homomya budaensis
Bivalvia - Cardiida - Cardiidae
Granocardium budaense
synonym of Trachycardium
Protocardia ? sp. (Beyrich 1845)
Bivalvia - Carditida - Crassatellidae
Stearnsia sp. White 1887
see common names

Geography
Country:United States State/province:New Mexico
Coordinates: 32.5° North, 107.7° West (view map)
Paleocoordinates:33.2° North, 72.1° West
Basis of coordinate:stated in text
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Cenomanian 10 m.y. bin:Cretaceous 5
Key time interval:Early/Lower Cenomanian Ammonoid zone: Mantelliceras dixoni
Age range of interval:100.50000 - 93.90000 m.y. ago
Stratigraphy
Geological group:Bisbee Formation:Mojado Member:Sarten
Stratigraphic resolution:bed
Stratigraphy comments: uppermost meter of the Sarten Sandstone
Lithology and environment
Primary lithology:nodular lithified sandy "limestone"
Environment:marine indet.
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collectors:E. R. Landis, S. C. Hook, and W. A. Cobban; J. R. Wright, D. E. Tabet, S. C. Hook, and W. A. Cobban; R. R. Cobban, S. C. Hook, and W. A. Cobban Collection dates:1976, 1977, 1980
Metadata
Database number:179775
Authorizer:M. Clapham Enterer:K. Okamoto
Modifier:M. Carrano Research group:marine invertebrate
Created:2016-06-30 14:19:19 Last modified:2022-07-01 08:58:09
Access level:the public Released:2016-06-30 14:19:19
Creative Commons license:CC BY
Reference information

Primary reference:
59591. W. A. Cobban. 1987. Ammonite Faunas of the Sarten Sandstone (Cretaceous), Luna County, New Mexico. United States Geological Survey Bulletin (1641-B) [M. Clapham/K. Okamoto]