Section 2, SM-51, Stanley Mountain, California: Late/Upper Tithonian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Protozoa
- Spumellaria
- Orbiculiformidae
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Orbiculiforma teres
Hull 1997
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rare category | |||||||||
| recombined as Orbiculiformella teres | ||||||||||
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Orbiculiforma sp.
Pessagno 1973
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rare category | |||||||||
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Protozoa
- Spumellaria
- Parvivaccidae
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Nolita ramosa
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rare category | |||||||||
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Acastea dura
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abundant category | |||||||||
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Acastea remusa
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rare category | |||||||||
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Acusten ordinarius
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rare category | |||||||||
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Parvivacca marina
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rare category | |||||||||
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Protozoa
- Spumellaria
- Emiluviidae
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? Emiluvia pessagnoi
Foreman 1973
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rare category | |||||||||
| ssp. multipora | ||||||||||
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Protozoa
- Spumellaria
- Patulibracchiidae
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Homoeoparonaella glinesi
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common category | |||||||||
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Homoeoparonaella scurrae
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rare category | |||||||||
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Protozoa
- Spumellaria
- Tritrabidae
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Neoparonaella volatica
Hull 1997
|
rare category | |||||||||
| synonym of Neoparonaella delicata | ||||||||||
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Protozoa
- Nassellaria
- Parvicingulidae
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Praeparvicingula saltata
|
Hull 1995 | rare category | ||||||||
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? Praeparvicingula nebulosa
Hull 1995
|
Hull 1995 | common category | ||||||||
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Praeparvicingula gemmata
Hull 1995
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Hull 1995 | rare category | ||||||||
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Parvicingula obstinata
|
Hull 1995 | rare category | ||||||||
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Parvicingula aff. obstinata
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Hull 1995 | common category | ||||||||
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Parvicingula colemani
Pessagno and Blome 1984
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Hull 1995 | rare category | ||||||||
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Parvicingula gracila
Hull 1995
|
Hull 1995 | common category | ||||||||
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Parvicingula bluefordae
Hull 1995
|
Hull 1995 | rare category | ||||||||
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Praeparvicingula aff. excelsa
(Pessagno and Blome 1984)
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Hull 1995 | common category | ||||||||
| original and current combination Parvicingula excelsa | ||||||||||
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Parvicingula turrita
(Rüst 1898)
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Hull 1995 | abundant category | ||||||||
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Protozoa
- Xiphostylidae
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Suna ehrenbergi
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rare category | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California |
| Coordinates: | 35.1° North, 120.2° West (view map) | ||
| Paleocoordinates: | 30.5° North, 65.5° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | hand sample |
Time
| Period: | Jurassic | Epoch: | Late/Upper Jurassic |
| Stage: | Tithonian | 10 m.y. bin: | Jurassic 6 |
| Key time interval: | Late/Upper Tithonian | ||
| Age range of interval: | 146.30000 - 145.00000 m.y. ago |
Stratigraphy
| Geological group: | Volcanopelagic Succession | Formation: | Unit 2 | ||
| Local section: | Section 2 | Local bed: | 106 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Zone 4 alpha - revision of chronostratigraphic assignment based on Baumgarnter et al. (1995) and Kiessling et al. (1999) | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" | ||
| Lithology description: Manganiferous limestone lens | |||
| Environment: | basinal (siliceous) | Tectonic setting: | deep ocean basin |
Taphonomy
| Modes of preservation: | body,original silica |
| Size of fossils: | microfossils |
| Preservation of anatomical detail: | good |
| Abundance in sediment: | few |
Collection methods and comments
| Collection methods: | bulk,hydrochloric,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Radiolarians only | |
Metadata
| Database number: | 50747 | ||
| Authorizer: | W. Kiessling | Enterer: | W. Kiessling |
| Modifier: | W. Kiessling | Research group: | micropaleontology |
| Created: | 2005-05-20 01:47:10 | Last modified: | 2005-05-20 04:47:10 |
| Access level: | the public | Released: | 2005-05-20 01:47:09 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 13552. | D. M. Hull. 1997. Upper Jurassic Tethyan and Southern Boreal radiolarians from western North America. Micropaleontology 43(S2):1-202 [W. Kiessling/W. Kiessling/M. Uhen] |
Secondary references:
| 13556 | D. M. Hull. 1995. Morphologic diversity and paleogeographic signficance of the family Parvicingulidae (Radiolaria). Micropaleontology 41:1-48 [W. Kiessling/W. Kiessling/W. Kiessling] |