USGS Mesozoic loc. 2154: Valanginian, Oregon
collected by Diller & Storrs 1900
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pectinida
- Buchiidae
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Buchia sp.
Rouillier 1845
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Imlay and Jones 1970 | |||||||||
| p. B10: "large crushed Buchias" | ||||||||||
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Cephalopoda
- Ammonitida
- Neocomitidae
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Acanthodiscus aff. subradiatus
Uhlig 1910
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Thurmanniceras wilcoxi
(Anderson 1938)
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Thurmanniceras jenkinsi
(Anderson 1933)
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Sarasinella cf. subspinosa
Uhlig 1905
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Kilianella cf. besairiei
Spath 1939
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Cephalopoda
- Ammonitida
- Polyptychitidae
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Tollia mutabilis
(Stanton 1895)
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Imlay and Jones 1970 | |||||||||
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Cephalopoda
- Hamulinidae
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Anahamulina wilcoxensis
Imlay 1960
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Oregon | County: | Curry |
| Coordinates: | 42.8° North, 124.5° West (view map) | ||||
| Paleocoordinates: | 42.4° North, 57.8° West (Wright 2013) | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Valanginian | 10 m.y. bin: | Cretaceous 1 |
| Key time interval: | Valanginian | ||
| Age range of interval: | 139.8 - 132.6 m.y. ago |
Stratigraphy
| Formation: | Myrtle | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Myrtle Fm. AGE: Valanginian, on the basis of macrofossil biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation. | |||||
Lithology and environment
| Primary lithology: | lithified "siliciclastic" |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Not stated, but probably siliciclastic. LITHIFICATION: Lithified on the basis of figured specimens. | |
| Environment: | marine indet. |
| Geology comments: ENVIRONMENT: Not stated in text. | |
Taphonomy
| Modes of preservation: | cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils | ||
| Collection methods: | surface (in situ),field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | Diller & Storrs | Collection dates: | 1900 |
| Collection method comments: COLLECTORS: J.S. Diller, 1900. REPOSITORY: USNM, Washington DC. | |||
| Taxonomic list comments:COVERAGE: Exhaustive for ammonoidea. Other taxonomic groups may be present but are not listed. NOMENCLATURE: Authoritative publication, with fairly modern nomenclature, and species-resolution identifications. | |||
Metadata
| Database number: | 83606 | ||
| Authorizer: | A. Hendy, J. Marcot | Enterer: | A. Hendy, J. Marcot |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2008-08-22 12:52:39 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2008-08-22 12:52:39 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 28036. | R. W. Imlay. 1960. Ammonites of Early Cretaceous age (Valanginian and Hauterivian) from the Pacific Coast states. United States Geological Survey Professional Paper 334(F):1-228 [A. Hendy/A. Hendy] |
Secondary references:
| 74406 | R. W. Imlay and D. L. Jones. 1970. Ammonites from the Buchia zones in northwestern California and southwestern Oregon. United States Geological Survey Professional Paper 647-B:B1-B59 [J. Marcot/J. Marcot] |