A38. South end of Valcour Island, Valcour 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: Valcour Formation (Chazy Group), Chazy (466.0 - 457.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; blue limestone

• Coarse-grained, dark-blue 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 172239: authorized by Björn Kröger, entered by Björn Kröger on 31.07.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Trilobita
 Corynexochida - Illaenidae
"Illaenus globosus" = Stenopareia globosus
"Illaenus globosus" = Stenopareia globosus Billings 1859 trilobite
 Asaphida - Asaphidae
Isotelus harrisi Raymond 1905 trilobite
Asaphus alpha trilobite
 Asaphida - Raphiophoridae
Lonchodomas chaziensis Shaw 1968 trilobite
see Shaw (1968, p. 34)
 Lichida - Lichidae
Amphilichas minganensis Billings 1865 trilobite
Ostracoda
 Palaeocopida -
Eurychilina latimarginata Raymond 1905 ostracod
 Leperditicopida - Leperditiidae
Leperditia limatula Raymond 1905 ostracod
Strophomenata
 Strophomenida - Strophomenidae
"Rafinesquina incrassata" = Dactylogonia incrassata
"Rafinesquina incrassata" = Dactylogonia incrassata Hall 1847
Rhynchonellata
 Rhynchonellida - Trigonirhynchiidae
"Camarotoechia plena" = Rostricellula plena
"Camarotoechia plena" = Rostricellula plena Hall 1847
 Orthida - Orthidiellidae
Orthidium lamellosum Raymond 1905
 Orthida - Plectorthidae
"Hebertella vulgaris" = Mimella vulgaris
"Hebertella vulgaris" = Mimella vulgaris Raymond 1911
Bivalvia
 Modiomorphida - Modiomorphidae
Modiolopsis fabaformis Raymond 1905 clam
Gastropoda
 Euomphalina - Macluritidae
Maclurites magnus Le Sueur 1818 snail
 Euomphalina - Raphistomatidae
Raphistoma stamineum Hall 1847 snail
 Bellerophontida - Bucaniidae
Bucania sulcatina Emmons 1842 snail
Anthozoa
 Rugosa -
Stylaraea parva Lambe 1899 horn coral