A12. South end of Valcour Island, Day Point Fm. (Ordovician of the United States)
Where: Clinton County, New York (44.6° N, 73.4° W: paleocoordinates 28.1° S, 54.8° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Day Point Formation (Chazy Group), Chazy (466.0 - 457.5 Ma)
Environment/lithology: marine; limestone and shale
• Shale and sandstone in bands about two inches thick. Above it are 28 feet of impure limestone.
Size classes: macrofossils, mesofossils
Primary reference: P. E. Raymond. 1906. The Chazy Formation and its fauna. Annals of the Carnegie Museum 3(4):498-596 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 172223: authorized by Björn Kröger, entered by Björn Kröger on 31.07.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| unclassified | |
| Trilobita | |
|
Isotelus harrisi Raymond 1905 trilobite
Asaphus beta trilobite | |
| Ostracoda | |
|
Eurychilina latimarginata Raymond 1905 ostracod | |
|
Leperditia canadensis Jones 1858 ostracod | |
| Strophomenata | |
|
Rafinesquina alternata Conrad 1838 | |
| Rhynchonellata | |
"Zygospira acutirostris" = Sphenotreta acutirostris
"Zygospira acutirostris" = Sphenotreta acutirostris Hall 1847 | |
"Hebertella exfoliata" = Orthambonites exfoliata
"Hebertella exfoliata" = Orthambonites exfoliata Raymond 1905 | |
"Hebertella vulgaris" = Mimella vulgaris
"Hebertella vulgaris" = Mimella vulgaris Raymond 1911 | |
| Stenolaemata | |
|
Phylloporina incepta Hall 1847 | |