Roaring River, Ono: Hauterivian, California
collected by Michael A. Murphy and Peter Rodda
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Angiospermae
- Icacinales
- Icacinaceae
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Onoana californica n. gen., n. sp.
Chandler and Axelrod 1961
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| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | Shasta |
| Coordinates: | 40.4° North, 122.7° West (view map) | ||||
| Paleocoordinates: | 39.3° North, 72.0° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Hauterivian | 10 m.y. bin: | Cretaceous 2 |
| Key time interval: | Hauterivian | Ammonoid zone: | Neocraspedites aguila |
| Age range of interval: | 132.6 - 125.77 m.y. ago |
Stratigraphy
| Formation: | Budden Canyon | Member: | Ogo | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: The locality is in the Neocraspedites aguila zone, the lowest biostratigraphic unit of the Horsetown stage (Murphy, 1956). Originally assigned to the Ono Formation. | |||||
Lithology and environment
| Primary lithology: | nodular calcareous sandstone |
| Secondary lithology: | mudstone |
| Includes fossils? | Y |
| Lithology description: "a limestone nodule in a calcareous grit associated with mudstones" | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | BMNH |
| Collectors: | Michael A. Murphy and Peter Rodda |
Metadata
| Also known as: | Onoana californica type locality | ||
| Database number: | 216252 | ||
| Authorizer: | J. Marcot | Enterer: | J. Marcot |
| Modifier: | M. Carrano | Research group: | paleobotany |
| Created: | 2020-12-09 16:00:13 | Last modified: | 2022-10-31 12:40:17 |
| Access level: | the public | Released: | 2020-12-09 16:00:13 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 74693. | M. E. J. Chandler and D. I. Axelrod. 1961. An Early Cretaceous (Hauterivian) angiosperm fruit from California. American Journal of Science 259(6):441-446 [J. Marcot/J. Marcot] |