List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Crinoidea
- Monobathrida
- Coelocrinidae
|
|||||||
|
Dorycrinus mississippiensis
|
|||||||
|
Crinoidea
- Monobathrida
- Batocrinidae
|
|||||||
|
Macrocrinus mundulus
(Hall 1859)
|
|||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Iowa | County: | Lee |
| Coordinates: | 40.4° North, 91.4° West (view map) | ||||
| Paleocoordinates: | 15.1° South, 35.4° West | ||||
| Basis of coordinate: | based on nearby landmark |
Stratigraphy
| Formation: | Keokuk Limestone | ||||
| Stratigraphy comments: JA: entered as Mississippian, but the Keokuk Limestone falls entirely within the Chadian to Arundian Gnathodus texanus zone (Work and Mason 2004) |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marine indet. |
| Geology comments: no litho info given | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:list is only of crinoid material now known from this new location section 4 of Kammer et al. 1990 | |
Metadata
| Database number: | 720 | ||
| Authorizer: | J. Alroy | Enterer: | M. Sommers |
| Modifier: | J. Alroy | Research group: | marine invertebrate |
| Created: | 1999-03-02 12:21:35 | Last modified: | 2012-01-29 18:55:27 |
| Access level: | the public | Released: | 1999-03-02 12:21:35 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 24. | W. I. Ausich and T. W. Kammer. 1991. Systematic revisions to Aorocrinus, Dorycrinus, Macrocrinus, Paradichocrinus, Strotocrinus, and Uperocrinus: Mississippian camerate crinoids (Echinodermata) from the stratotype region. Journal of Paleontology 65(6):936-944 [J. Alroy/M. Sommers/J. Alroy] |