Ziegler Reservoir, Locality 66, Unit 7: Late Pleistocene, Colorado
collected 2010-2011
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Insecta
- Hymenoptera
- Formicidae
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Formica neorufibarbis
Emery 1893
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1 individual | ||||||
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Insecta
- Trichoptera
- Limnephilidae
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Limnephilidae indet.
Kolenati 1848
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1 individual | ||||||
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Insecta
- Coleoptera
- Carabidae
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Pterostichus sp.
Bonelli 1810
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1 individual | ||||||
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Bembidion sp.
Latreille 1802
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1 individual | ||||||
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Insecta
- Coleoptera
- Nitidulidae
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Epuraea planulata
Erichson 1843
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1 individual | ||||||
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Insecta
- Coleoptera
- Curculionidae
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Tanysphyrus lemnae
(Fabricius 1792)
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1 individual | ||||||
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Scolytus piceae
(Swaine 1910)
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3 individuals | ||||||
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Dolurgus pumilus
(Mannerheim 1843)
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1 individual | ||||||
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Insecta
- Coleoptera
- Byrrhidae
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Simplocaria tessellata
(Le Conte 1850)
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1 individual | ||||||
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Insecta
- Coleoptera
- Buprestidae
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Anthaxia prasina
Horn 1882
|
1 individual | ||||||
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Insecta
- Coleoptera
- Elateridae
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Elateridae indet.
Leach 1815
|
1 individual | ||||||
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Insecta
- Coleoptera
- Hydrophilidae
|
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Hydrobius fuscipes
(Linnaeus 1758)
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2 individuals | ||||||
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Insecta
- Coleoptera
- Staphylinidae
|
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Lathrobium sp.
Gravenhorst 1802
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1 individual | ||||||
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Olophrum sp.
Erichson 1839
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1 individual | ||||||
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Olophrum obtectum
Erichson 1840
|
1 individual | ||||||
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Oxytelus laqueatus
(Marsham 1802)
|
2 individuals | ||||||
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Stenus sp.
Latreille 1796
|
1 individual | ||||||
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Thanatophilus coloradensis
(Wickham 1902)
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1 individual | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Colorado | County: | Pitkin |
| Coordinates: | 39.2° North, 107.0° West (view map) | ||||
| Paleocoordinates: | 39.2° North, 107.0° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Altitude: | 2705 meters | ||||
| Geographic resolution: | small collection |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| Stage: | Late Pleistocene | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Late Pleistocene | ||
| Age range of interval: | 0.129 - 0.0117 m.y. ago | ||
| Age estimate: | 126 to 120 Ka (other) |
Stratigraphy
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: MIS 5e, dated by OSL. | |||||
Lithology and environment
| Primary lithology: | unlithified peat | ||
| Environment: | pond | Tectonic setting: | non-subsiding area |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | chemical |
| Minimum sieve size: | 0.300 |
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | DMNH | Collection dates: | 2010-2011 |
| Collection method comments: Boiled in a dilute solution of sodiumhexametaphosphate, a dispersant. Most samples disaggregated in this procedure, but a few contained highly felted peats that were subsequently treated in cold, 7% KOH solution to aid disaggregation. The organic fraction of each sample was then wet sieved on a 300 μm screen, and insect fossils were isolated from plant residues by the kerosene flotation method. | |
Metadata
| Database number: | 169333 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | paleoentomology |
| Created: | 2015-05-19 22:51:12 | Last modified: | 2015-05-22 23:56:53 |
| Access level: | the public | Released: | 2015-05-19 22:51:12 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 55325. | S. A. Elias. 2014. Environmental interpretation of fossil insect assemblages from MIS 5 at Ziegler Reservoir, Snowmass Village, Colorado. Quaternary Research 82:592-603 [M. Clapham/M. Clapham] |