Big Hatchet Mountains, near Hachita: Demingian, New Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Euomphalina
- Raphistomatidae
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Bridgeites discoideus n. gen., n. sp.
Flower 1968
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see common names |
Geography
Country: | United States | State/province: | New Mexico | County: | Grant |
Coordinates: | 31.9° North, 108.3° West (view map) | ||||
Paleocoordinates: | 11.9° South, 91.4° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Ordovician | Epoch: | Early/Lower Ordovician |
Stage: | Tremadocian | 10 m.y. bin: | Ordovician 1 |
Key time interval: | Demingian | ||
Age range of interval: | 485.40000 - 478.60000 m.y. ago |
Stratigraphy
Geological group: | El Paso | Formation: | Mud Springs | ||
Stratigraphic resolution: | formation | ||||
Stratigraphy comments: early Arenig; correlates to F zone of Hintze (1952). Now Stairsian. |
Lithology and environment
Primary lithology: | stromatolitic lithified cherty/siliceous "limestone" |
Lithology description: light-weathering stromatolitic limestone, resistant, generally cliff-forming, with chret largely in small nodules and silicified worm trails. | |
Environment: | carbonate indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | general faunal/floral analysis |
Metadata
Database number: | 56483 | ||
Authorizer: | P. Wagner | Enterer: | P. Wagner |
Modifier: | P. Wagner | Research group: | marine invertebrate |
Created: | 2005-11-19 10:41:24 | Last modified: | 2020-06-17 00:49:51 |
Access level: | the public | Released: | 2005-11-19 10:41:24 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
11514. | R. H. Flower. 1968. Part I - Some El Paso guide fossils. New Mexico Institute of Mining and Technology Memoir 22(1):1-21 [P. Wagner/P. Wagner/P. Wagner] |