CAS loc. 28312, Mustang Gulch: Maastrichtian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Rhynchonellida
- Rhynchonellidae
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Rhynchonella sp.
Fischer 1809
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Gastropoda
- Aporrhaidae
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Pugnellus aff. hamulus
Gabb 1864
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| recombined as Pyktes hamulus | |||||||
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Gastropoda
- Tylostomatidae
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Phasianella garzana
Anderson 1958
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| recombined as Tylostoma garzana | |||||||
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Cephalopoda
- Ammonitida
- Baculitidae
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Baculites aff. lomaensis
Anderson 1958
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Baculites aff. occidentalis
Meek 1861
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Bivalvia
- Carditida
- Astartidae
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Opisoma pacifica
Anderson 1958
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| synonym of Opis (Hesperopis) triangulata | |||||||
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Bivalvia
- Cardiida
- Veneridae
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Trigonocallista nitida
(Gabb 1864)
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| recombined as Calva (Egelicalva) nitida | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | Merced |
| Coordinates: | 37.2° North, 121.1° West (view map) | ||||
| Paleocoordinates: | 43.3° North, 96.5° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Maastrichtian | Ammonoid zone: | Neodesmoceras catarinae |
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Geological group: | Great Valley | Formation: | Moreno | Member: | Quinto Silt |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: LITHOSTRATIGRAPHY: From the Quinto Silt of the Moreno Fm, Asuncion Gp, which overlies the Mustang Shale Mbr and is overlain by the Garzas Sand. AGE: Maastrichtian, on the basis of ammonoid biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within the the Quinto Silt. | |||||
Lithology and environment
| Primary lithology: | lithified sandstone |
| Includes fossils? | Y |
| Lithology description: LITHOLOGY: Sandstone. LITHIFICATION: Lithified, on the basis of figured specimens. | |
| Environment: | marine indet. |
| Geology comments: ENVIRONMENT: Siliciclastic marine setting. | |
Taphonomy
| Modes of preservation: | body,cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (in situ),field collection,survey of museum collection |
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | CAS |
| Collection method comments: COLLECTOR: Multiple collections, including Taff, Hanna, Cross, Bennison, McCoy and Anderson. REPOSITORY: California Academy of Sciences. | |
| Taxonomic list comments:COVERAGE: Exhaustive for macrofossils. NOMENCLATURE: Authoritative publication, but with somewhat antiquated nomenclature. | |
Metadata
| Database number: | 83791 | ||
| Authorizer: | A. Hendy, J. Marcot | Enterer: | A. Hendy, J. Marcot |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2008-09-01 21:33:48 | Last modified: | 2024-03-11 19:37:44 |
| Access level: | the public | Released: | 2008-09-01 21:33:48 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 11610. | F. M. Anderson. 1958. Upper Cretaceous of the Pacific Coast. Geological Society of America Memoir 71:1-378 [A. Miller/A. Hendy/M. Clapham] |