A18. 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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Paleocystites tenuiradiatus
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Ostracoda
- Leperditicopida
- Leperditiidae
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Leperditia canadensis
Jones 1858
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Ostracoda
- Hollinocopida
- Eurychilinidae
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Eurychilina latimarginata
(Raymond 1905)
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Trilobita
- Phacopida
- Pliomeridae
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Pliomerops canadensis
(Billings 1859)
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Trilobita
- Phacopida
- Cheiruridae
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Pseudosphaerexochus chazyensis
Raymond 1905
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| recombined as Kawina chazyensis | ||||||||||
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Trilobita
- Phacopida
- Pterygometopidae
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Pterygometopus annulatus
Raymond 1905
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| recombined as Calyptaulax annulata | ||||||||||
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Trilobita
- Asaphida
- Asaphidae
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Isotelus harrisi
Raymond 1905
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Asaphus alpha
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Asaphus beta
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Asaphus gamma
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Trilobita
- Trinucleida
- Raphiophoridae
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Lonchodomas chaziensis
Shaw 1968
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Shaw 1968 | |||||||||
| see Shaw (1968, p. 34) | ||||||||||
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Trilobita
- Harpetida
- Harpetidae
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Hibbertia valcourensis
(Shaw 1968)
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Shaw 1968 | |||||||||
| Harpes valcourensis | ||||||||||
| see Shaw (1968, p. 53) | ||||||||||
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Trilobita
- Corynexochida
- Illaenidae
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Illaenus globosus
Billings 1859
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| recombined as Stenopareia globosus | ||||||||||
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Thaleops ovata
Conrad 1843
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Bivalvia
- Solemyida
- Ctenodontidae
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Ctenodonta peracuta
Raymond 1905
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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
- Pentamerida
- Camerellidae
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Camerella varians
Billings 1859
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= Camerella ventricosa
Cooper 1956
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Cooper 1956 | |||||||||
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Strophomenata
- Billingsellida
- Clitambonitidae
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Clitambonites multicostus
(Hudson 1905)
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| recombined as Atelelasma multicosta | ||||||||||
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Strophomenata
- Strophomenida
- Furcitellidae
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Rafinesquina incrassata
(Hall 1847)
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| recombined as Dactylogonia incrassata | ||||||||||
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina champlainensis
Raymond 1902
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| recombined as Macrocoelia champlainensis | ||||||||||
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Strophomenata
- Strophomenida
- Glyptomenidae
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Rafinesquina distans
Raymond 1906
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| recombined as Glyptomena distans | ||||||||||
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Stenolaemata
- Cryptostomata
- Rhinidictyidae
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Rhinidictya fenestrata
(Hall 1847)
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| original and current combination Stictopora fenestrata | ||||||||||
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Stenolaemata
- Phylloporinidae
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Phylloporina incepta
(Hall 1847)
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Eocrinoidea
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Bolboporites americanus
Billings 1859
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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" |
| Lithology description: Thin-bedded, fairly pure, light-gray limestone containing many fossils. | |
| 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: | 172226 | ||
| Authorizer: | B. Kröger, P. Wagner | Enterer: | B. Kröger, P. Wagner | Research group: | marine invertebrate |
| Created: | 2015-07-31 02:54:19 | Last modified: | 2024-03-31 19:20:59 |
| Access level: | the public | Released: | 2015-07-31 02:54:19 |
| 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] |
Secondary references:
| 44678 | G. A. Cooper. 1956. Chazyan and related brachiopods. Smithsonian Miscellaneous Collections 127:1-1245 [P. Wagner/P. Wagner] | |
| 23704 | F.C. Shaw. 1968. Early Middle Ordovician (Chazy) trilobites of New York. New York State Museum and Science Service Memoir 17:1-163 [P. Wagner/P. Wagner] |