500m N of E.S.I., Empozada Form., Mendoza, Argentina - Tortello and Bordonaro 19: Middle Cambrian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Agnostida
- Diplagnostidae
|
||||||||||
|
Diplagnostus indianus
|
1 specimen | |||||||||
|
Agnostida
- Spinagnostidae
|
||||||||||
|
Hypagnostus parvifrons
(Linnarsson 1869)
|
10 specimens | |||||||||
| (7 cephala and 3 pygidia) | ||||||||||
|
Agnostida
- Ptychagnostidae
|
||||||||||
|
Ptychagnostus cuyanus
(Rusconi 1948)
|
33 specimens | |||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Mendoza |
| Coordinates: | 29.5° South, 59.3° West (view map) | ||
| Paleocoordinates: | 29.5° South, 59.3° West | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Miaolingian |
| 10 m.y. bin: | Cambrian 3-4 | ||
| *Period: | Middle Cambrian - Late/Upper Cambrian | *Epoch: | St. David's |
| Key time interval: | Middle Cambrian | Zone: | P. atavus |
| Age range of interval: | 509 - 497 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Empozada | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: JA: atavus zone is middle Middle Cambrian according to Gradstein et al. 2004 | |||||
Lithology and environment
| Primary lithology: | lithified "carbonate" |
| Includes fossils? | Y |
| Lithology description: general: isolated, predominantly carbonate blocks (olistoliths | |
| Environment: | carbonate indet. |
Taphonomy
Collection methods and comments
| Collection excludes: | some genera |
| Collection methods: | survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Revisions of the Carlos Rusconi collections in the Museum of Natural Sciences of Mendoza, Argentina. Includes only agnostid trilobites. | |
Metadata
| Database number: | 9816 | ||
| Authorizer: | J. Alroy, M. Patzkowsky | Enterer: | P. Borkow, J. Alroy |
| Modifier: | J. Alroy | Research group: | marine invertebrate |
| Created: | 2001-01-22 13:58:21 | Last modified: | 2007-02-25 21:37:39 |
| Access level: | the public | Released: | 2001-01-22 13:58:21 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 849. | M. F. Tortello and O. L. Bordonaro. 1997. Cambrian Agnostid trilobites from Mendoza, Argentina: A systematic revision and biostratigraphic implications. Journal of Paleontology 71(1):74-86 [M. Patzkowsky/P. Borkow] |