Section N - collection N-104: Dresbachian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Trilobita
- Llanoaspididae
|
|||||||
|
Llanoaspis modesta
|
|||||||
|
Nahannicephalus keelei
|
|||||||
|
Deiracephalus aster
(Walcott 1916)
|
|||||||
|
Trilobita
- Ptychopariida
- Kingstoniidae
|
|||||||
|
? Blountia sp.
Walcott 1916
|
|||||||
|
Kingstonia walcotti
|
|||||||
|
Trilobita
- Ptychopariida
- Crepicephalidae
|
|||||||
|
Crepicephalus snowyensis
|
|||||||
|
Trilobita
- Ptychopariida
- Lonchocephalidae
|
|||||||
|
Glaphyraspis davidis
|
|||||||
|
Terranovella dorsalis
(Hall 1863)
|
|||||||
|
Trilobita
- Ptychopariida
- Tricrepicephalidae
|
|||||||
|
Tricrepicephalus texanus
|
|||||||
|
Trilobita
- Ptychopariida
- Norwoodiidae
|
|||||||
|
Norwoodia chattertoni
|
|||||||
|
Trilobita
- Olenida
- Cedariidae
|
|||||||
|
Cedaria prolifica
Walcott 1924
|
|||||||
|
Agnostida
- Agnostidae
|
|||||||
|
Acmarhachis typicalis
Resser 1938
|
|||||||
|
Agnostida
- Diplagnostidae
|
|||||||
|
Pseudagnostus douvillei
(Bergeron 1899)
|
|||||||
|
Nahannagnostus nganasanicus
(Rozova 1964)
|
|||||||
| see common names | |||||||
Geography
| Country: | Canada | State/province: | Yukon |
| Coordinates: | 62.7° North, 128.4° West (view map) | ||
| Paleocoordinates: | 3.1° North, 64.3° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Furongian |
| 10 m.y. bin: | Cambrian 5 | ||
| Key time interval: | Dresbachian | ||
| Age range of interval: | 497 - 485.4 m.y. ago |
Stratigraphy
| Formation: | Rabbitkettle |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | planar lamination lithified argillaceous,calcareous siltstone | ||
| Secondary lithology: | planar lamination,fine lithified sandstone | ||
| Includes fossils? | Y | ||
| Includes fossils? | Y | ||
| Environment: | offshore | Tectonic setting: | passive margin |
Taphonomy
| Modes of preservation: | body,replaced with silica,replaced with phosphate |
| Preservation of anatomical detail: | excellent |
| Temporal resolution: | time-averaged |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | chemical,mechanical,field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 55221 | ||
| Authorizer: | S. Peters | Enterer: | S. Peters | Research group: | marine invertebrate |
| Created: | 2005-09-29 16:12:20 | Last modified: | 2005-09-29 19:12:20 |
| Access level: | the public | Released: | 2005-09-29 16:12:19 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 14672. | B.R. Pratt. 1992. Trilobites of the Marjuman and Steptoean stages (Upper Cambrian), Rabbitkettle Formation, southern Mackenzie Mountains, northwest Canada. Palaeontographica Canadiana (9)1-109 [S. Peters/S. Peters/S. Peters] |