USGS Mesozoic Locality 25209, Riddle: Hauterivian, Oregon
collected by H.M. Dole 1954
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Malacostraca
- Decapoda
- Nephropidae
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Hoploparia riddlensis
Feldmann 1974
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Cephalopoda
- Ammonitida
- Polyptychitidae
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Wellsia oregonensis
(Anderson 1938)
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| recombined as Homolsomites oregonensis | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Oregon | County: | Douglas |
| Coordinates: | 43.0° North, 123.4° West (view map) | ||||
| Paleocoordinates: | 41.8° North, 72.1° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Hauterivian | 10 m.y. bin: | Cretaceous 2 |
| Key time interval: | Hauterivian | ||
| Age range of interval: | 132.60000 - 125.77000 m.y. ago |
Stratigraphy
| Formation: | Days Creek | ||||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: lobsters collected from upper member of Days Creek Formation | |||||
Lithology and environment
| Primary lithology: | fine sandstone |
| Secondary lithology: | concretionary siltstone |
| Includes fossils? | Y |
| Lithology description: alternating units of fine-grained sandstone and siltsone containing small limestone concretions | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,concretion,original chitin |
| Size of fossils: | macrofossils,microfossils |
| Articulated whole bodies: | many |
| Associated major elements: | many |
| Temporal resolution: | time-averaged |
Collection methods and comments
| Collection methods: | surface (float),surface (in situ),mechanical | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | H.M. Dole | Collection dates: | 1954 |
Metadata
| Database number: | 45686 | ||
| Authorizer: | C. Schweitzer | Enterer: | C. Schweitzer |
| Modifier: | M. Clapham | Research group: | decapod,marine invertebrate |
| Created: | 2004-11-24 06:27:23 | Last modified: | 2017-06-04 15:30:58 |
| Access level: | the public | Released: | 2004-11-24 06:27:23 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 12044. | R. M. Feldmann. 1974. Hoploparia riddlensis, a new species of lobster (Decapoda: Nephropidae) from the Days Creek Formation (Hauterivian, Lower Cretaceous) of Oregon. Journal of Paleontology 48(3):586-593 [C. Schweitzer/C. Schweitzer/C. Schweitzer] |