A12. South end of Valcour Island, Day Point Fm.: Chazyan, New York
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Illaenus punctatus
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Ostracoda
- Palaeocopida
- Eurychilinidae
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Eurychilina latimarginata
(Raymond 1905)
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Ostracoda
- Leperditicopida
- Leperditiidae
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Leperditia canadensis
Jones 1858
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Trilobita
- Asaphida
- Asaphidae
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Isotelus harrisi
Raymond 1905
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Asaphus beta
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Stenolaemata
- Phylloporinidae
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Phylloporina incepta
(Hall 1847)
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Rhynchonellata
- Orthida
- Orthidae
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Hebertella exfoliata
Raymond 1905
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| recombined as Orthambonites exfoliata | |||||||
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Rhynchonellata
- Orthida
- Plectorthidae
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Hebertella vulgaris
Raymond 1911
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| recombined as Mimella vulgaris | |||||||
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Rhynchonellata
- Rhynchonellida
- Sphenotretidae
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Zygospira acutirostris
(Hall 1847)
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| recombined as Sphenotreta acutirostris | |||||||
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina alternata
(Conrad 1838)
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| see common names | |||||||
Geography
| Country: | United States | State/province: | New York | County: | Clinton |
| Coordinates: | 44.6° North, 73.4° West (view map) | ||||
| Paleocoordinates: | 28.1° South, 54.8° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician |
| 10 m.y. bin: | Ordovician 2-4 |
| Key time interval: | Chazyan |
| Age range of interval: | 470.00000 - 457.00000 m.y. ago |
Lithology and environment
| Primary lithology: | "limestone" |
| Secondary lithology: | "shale" |
| Lithology description: Shale and sandstone in bands about two inches thick. Above it are 28 feet of impure limestone. | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection excludes: | some genera |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 172223 | ||
| Authorizer: | B. Kröger | Enterer: | B. Kröger |
| Modifier: | B. Kröger | Research group: | marine invertebrate |
| Created: | 2015-07-31 02:44:34 | Last modified: | 2024-03-31 19:20:59 |
| Access level: | the public | Released: | 2015-07-31 02:44:34 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 15149. | P. E. Raymond. 1906. The Chazy Formation and its fauna. Annals of the Carnegie Museum 3(4):498-596 [P. Wagner/P. Wagner] |