Sardeson Collection, Wise Lake Formation, Rifle Hill Member, Illinois and Iowa: Edenian, Illinois, Iowa
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena trilobita
(Owen 1852)
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| recombined as Strophomena trilobata | |||||||
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina deltoidea
(Conrad 1838)
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Trilobita
- Corynexochida
- Illaenidae
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Bumastus orbicaudatus
(Billings 1859)
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Trilobita
- Asaphida
- Asaphidae
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Isotelus gigas
(Dekay 1824)
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| recombined as Asaphus gigas | |||||||
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Isotelus susae
(Whitfield 1882)
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Trilobita
- Phacopida
- Calymenidae
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Flexicalymene senaria
(Conrad 1841)
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| recombined as Flexicalymene (Flexicalymene) senaria | |||||||
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Trilobita
- Phacopida
- Cheiruridae
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Ceraurinus icarus
(Billings 1860)
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Illinois, Iowa |
| Coordinates: | 42.0° North, 90.5° West (view map) | ||
| Paleocoordinates: | 21.3° South, 63.6° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | basin |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| Stage: | Katian | 10 m.y. bin: | Ordovician 5 |
| *Period: | Middle Ordovician - Late/Upper Ordovician | *Local age/stage: | Edenian |
| Key time interval: | Edenian | Graptolite zone: | Amplexograptus manitoulinensis |
| Age range of interval: | 451.10000 - 450.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Galena | Formation: | Wise Lake | Member: | Rifle Hill |
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: Rifle Hill Member = "Stewartville" Member | |||||
Lithology and environment
| Primary lithology: | dolomite |
| Includes fossils? | Y |
| Lithology description: Dolomite or dolomitic mottled limestone. Lithology from C. O. Leverson, A. J. Gerk, R. E. Sloan, & L. A. Bisagno. General section of the Middle and Late Ordovician strata of Northeastern Iowa, Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35, p.25-39. Edited by R. E. Sloan. | |
| Environment: | carbonate indet. |
| Geology comments: Environmental call by T. Hanson. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 23808 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2002-07-21 18:54:09 | Last modified: | 2018-03-24 01:04:35 |
| Access level: | the public | Released: | 2002-07-21 18:54:09 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6752. | J. A. Catalani. 1987. Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area. In R. E. Sloan (ed.), Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 187-189 [S. Holland/T. Hanson/S. Bruning] |