2 1/3-3 miles north of Ava: Tulean - Blackhillsian, Missouri
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Endocerida
- Proterocameroceratidae
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Mcqueenoceras jeffersonense
Ulrich and Foerste 1936
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Ulrich et al. 1944 | 1 specimen | ||||||||
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Cephalopoda
- Ellesmerocerida
- Ellesmeroceratidae
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Diaphoroceras avaense
Ulrich et al. 1944
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Ulrich et al. 1944 | 1 specimen | ||||||||
| USNM 109450 | ||||||||||
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Cephalopoda
- Tarphycerida
- Estonioceratidae
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Aphetoceras subcostulatum
Ulrich et al. 1942
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| several specimens | ||||||||||
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Pycnoceras clausum
Ulrich et al. 1942
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1 specimen | |||||||||
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Cephalopoda
- Bassleroceratidae
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Avaoceras longidomum
Ulrich et al. 1944
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Ulrich et al. 1944 | 1 specimen | ||||||||
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Avaoceras magnisiphonatum
Ulrich et al. 1944
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Ulrich et al. 1944 | 2 specimens | ||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Missouri | County: | Douglas |
| Coordinates: | 37.0° North, 92.7° West (view map) | ||||
| Paleocoordinates: | 23.0° South, 81.0° West | ||||
| Basis of coordinate: | based on nearby landmark |
Time
| Period: | Ordovician | Epoch: | Early/Lower Ordovician |
| Key time interval: | Tulean - Blackhillsian | ||
| Age range of interval: | 480.30000 - 470.00000 m.y. ago |
Stratigraphy
| Formation: | Jefferson City |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | cast,original aragonite,replaced with calcite |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some genera |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 98444 | ||
| Authorizer: | B. Kröger | Enterer: | B. Kröger |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 2010-10-06 11:42:07 | Last modified: | 2018-11-03 09:27:06 |
| Access level: | the public | Released: | 2010-10-06 11:42:07 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 30180. | E. O. Ulrich, A. F. Foerste, A. K. Miller and W. M. Furnish. 1942. Ozarkian and Canadian cephalopods, Part I: Nautilicones. Geological Society of America Special Papers 37:1-157 [B. Kröger/B. Kröger/B. Kröger] |
Secondary references:
| 16397 | E. O. Ulrich, A. F. Foerste, A. K. Miller and W. M. Furnish. 1944. Ozarkian and Canadian cephalopods, longicones and summary. Geological Society of America Special Paper 58:1-226 [P. Wagner/P. Wagner/B. Kröger] |