USGS Loc. D10256, Rio Salado: Cenomanian, New Mexico
collected by Massingill & Hook 1977
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Echinoidea
- Spatangoida
- Hemiasteridae
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Hemiaster jacksoni
Maury 1925
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| synonym of Mecaster batnensis | |||||||
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Bivalvia
- Ostreida
- Gryphaeidae
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Pycnodonte newberryi
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Cephalopoda
- Ammonitida
- Acanthoceratidae
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Metoicoceras geslinianum
(d'Orbigny 1841)
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Cephalopoda
- Ammonitida
- Baculitidae
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Sciponoceras gracile
(Shumard 1860)
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unclassified
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Rostellites ambigua
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| see common names | |||||||
Geography
| Country: | United States | State/province: | New Mexico | County: | Socorro |
| Coordinates: | 34.4° North, 107.5° West (view map) | ||||
| Paleocoordinates: | 35.1° North, 71.2° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
| Key time interval: | Cenomanian | Ammonoid zone: | Sciponoceras gracile |
| Age range of interval: | 100.50000 - 93.90000 m.y. ago |
Stratigraphy
| Formation: | Mancos Shale | Member: | Rio Salado Tongue | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Rio Salado Tongue of the Mancos Shale, which overlies the Dakota Sandstone, and is overlain by the Tres Hermanos Fm. AGE: Turonian, on the basis of ammonite biostratigraphy (in text); revised to Cenomanian by A. Hendy 5/2009 (Sciponoceras gracile zone). STRATIGRAPHIC POSITION: From unit 4, near base of section. | |||||
Lithology and environment
| Primary lithology: | nodular,gray,yellow lithified argillaceous "limestone" |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Limestone, fossiliferous, shaley, nodular, yellowish-gray, weathering to light-gray. LITHIFICATION: Lithified, on the basis of lithologic description. | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (in situ),field collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | Massingill & Hook | Collection dates: | 1977 |
| Collection method comments: COLLECTOR: Massingill & Hook, 1977. REPOSITORY: USNM. | |||
| Taxonomic list comments:COVERAGE: Exhaustive for bivalves and ammonoids. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications. | |||
Metadata
| Database number: | 88813 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2009-04-21 15:04:44 | Last modified: | 2018-11-21 21:41:28 |
| Access level: | the public | Released: | 2009-04-21 15:04:44 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 29772. | S. C. Hook, C. M. Molenaar, and W. A. Cobban. 1983. Stratigraphy and revision of nomenclature of upper Cenomanian to Turonian (Upper Cretaceous) rocks of west-central New Mexico. New Mexico Bureau of Mines and Mineral Resources Circular 185:7-28 [A. Hendy/A. Hendy] |
Secondary references:
| 67399 | S. C. Hook and W. A. Cobban. 2017. Mecaster batnensis (Coquand, 1862), a late Cenomanian echinoid from New Mexico, with a compilation of Late Cretaceous echinoid records in the Western Interior of the United States and Canada. Acta Geologica Polonica 67:1-30 [M. Clapham/M. Clapham] |