Valcour shore, Lake Champlain (Ordovician of the United States)

Where: New York (44.6° N, 73.4° W: paleocoordinates 28.1° S, 54.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Day Point Formation (Chazy Group), Chazy (466.0 - 457.5 Ma)

• The entire Valcour shore section is Day Point Fm according to Fisher (1968) Geology of the Plattsburgh and Rouses Point, New York-Vermont, quadrangle.

Environment/lithology: marine; lithified limestone

Size classes: macrofossils, mesofossils

Primary reference: P. E. Raymond. 1905. The fauna of the Chazy Limestone. The American Journal of Science 20:353-382 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 172187: authorized by Björn Kröger, entered by Björn Kröger on 29.07.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

 Leperditicopida - Leperditiidae
Leperditia limatula Raymond 1905 ostracod
Leperditia nana Jones 1858 ostracod
 Orthotetida - Triplesiidae
"Camerella longirostris" = Onychoplecia longirostris
"Camerella longirostris" = Onychoplecia longirostris Billings 1859
 Pentamerida - Camerellidae
Camerella varians Billings 1859
 Rhynchonellida - Sphenotretidae
"Zygospira acutirostris" = Sphenotreta acutirostris
"Zygospira acutirostris" = Sphenotreta acutirostris Hall 1847
 Orthida - Orthidae
"Hebertella exfoliata" = Orthambonites exfoliata
"Hebertella exfoliata" = Orthambonites exfoliata Raymond 1905
 Orthida - Plectorthidae
Plectorthis exfoliata Raymond 1905
 Murchisoniina - Straparollinidae
"Holopea hudsoni" = Straparollina hudsoni
"Holopea hudsoni" = Straparollina hudsoni Raymond 1905 snail