Where: New York (44.6° N, 73.4° W: paleocoordinates 28.1° S, 54.8° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Valcour Formation (Chazy Group), Chazyan (470.0 - 457.3 Ma)
• "upper Chazy", in Raymond (1916)
• group of beds-level stratigraphic resolution
Environment/lithology: reef, buildup or bioherm; lithified lime mudstone and limestone
Size classes: macrofossils, mesofossils
Collection methods: The mounds contain stromatoporoids, bryozoans, corals and sponges.
Primary reference: P. E. Raymond. 1916. The Pelecypoda of the Chazy Formation. Annals of the Carnegie Museum 328:325-343 [B. Kröger/B. Kröger]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 171705: authorized by Björn Kröger, entered by Björn Kröger on 17.07.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhodophyceae | |
Bivalvia | |
Ctenodonta peracuta Raymond 1905 clam | |
Modiolopsis fabaformis Raymond 1905 clam
Modiolopsis exanimis Raymond 1916 clam | |
"Clionychia montrealensis" = Cleionychia montrealensis, "Ambonychia curvata" = Ambonychiopsis curvata
"Clionychia montrealensis" = Cleionychia montrealensis Billings 1859 clam
"Ambonychia curvata" = Ambonychiopsis curvata Raymond 1905 clam | |
Rostroconchia | |
"Conocardium beecheri" = Pojetaconcha beecheri
"Conocardium beecheri" = Pojetaconcha beecheri Raymond 1905 | |
Cephalopoda | |
"Cameroceras tenuiseptum" = Valcouroceras tenuiseptum4
"Cameroceras tenuiseptum" = Valcouroceras tenuiseptum4 Ruedemann 1906 | |
Endoceras hudsoni4 Ruedemann 1906
Vaginoceras oppletum4 Ruedemann 1906 | |
Gonioceras chaziense1 Ruedemann 1906 | |
Lingulata | |
"Lingula columba" = Lingulella columba3 Raymond 1905
"Glossina belli" = Palaeoglossa belli3 Billings 1859 | |
Rhynchonellata | |
"Hebertella bellarugosa" = Glyptorthis bellarugosa3
"Hebertella bellarugosa" = Glyptorthis bellarugosa3 Conrad 1843 | |
"Camarotoechia plena" = Rostricellula plena3
"Camarotoechia plena" = Rostricellula plena3 Hall 1847 | |
Strophomenata | |
"Rafinesquina distans" = Glyptomena distans3
"Rafinesquina distans" = Glyptomena distans3 Raymond 1906 | |
"Camerella longirostris" = Onychoplecia longirostris3
"Camerella longirostris" = Onychoplecia longirostris3 Billings 1859 | |
Trilobita | |
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