Where: New York (43.6° N, 73.3° W: paleocoordinates 30.9° S, 61.1° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Fort Cassin Formation, Arenig (478.6 - 466.0 Ma)
• bed-level stratigraphic resolution
Environment/lithology: deep subtidal shelf; lithified, shelly/skeletal packstone and lithified, intraclastic, shelly/skeletal grainstone
Size class: macrofossils
Reposited in the AMNH, CM, MCZ, NYSM
Collection methods: bulk,
Primary reference: K. D. Brett and S. R. Westrop. 1996. Trilobites of the Lower Ordovician (Ibexian) For Cassin Formation, Champlain Valley Region, New York State and Vermont. Journal of Paleontology 70(3):408-427 [S. Peters/S. Peters/O. Alfaro]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 55243: authorized by Shanan Peters, entered by Shanan Peters on 30.09.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Robergiella cf. brevilingua Fortey 1980 trilobite | |
Isoteloides canalis Whitfield 1886 trilobite
Isoteloides peri Fortey 1979 trilobite | |
Ischyrotoma sp. Raymond 1925 trilobite | |
"Grinnellaspis cf. marginiata" = Uromystrum marginiatus, Bathyurellus platypus, Strigigenalis cassinensis, Acidiphorus sp., Acidiphorus whittingtoni
"Grinnellaspis cf. marginiata" = Uromystrum marginiatus Billings 1865 trilobite
Bathyurellus platypus Fortey 1979 trilobite
Strigigenalis cassinensis trilobite
Acidiphorus sp. Raymond 1925 trilobite
Acidiphorus whittingtoni Brett and Westrop 1996 trilobite |