A30. South end of Valcour Island, Crown 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: Crown Point Formation (Chazy Group), Chazy (466.0 - 457.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; limestone and shale

• Impure, thin-bedded limestone with occasional thin beds of shale.

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 172232: authorized by Björn Kröger, entered by Björn Kröger on 31.07.2015, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Trilobita
 Corynexochida - Illaenidae
Thaleops ovata, "Illaenus globosus" = Stenopareia globosus, "Illaenus erastusi" = Platillaenus erastusi
Thaleops ovata Conrad 1843 trilobite
"Illaenus globosus" = Stenopareia globosus Billings 1859 trilobite
"Illaenus erastusi" = Platillaenus erastusi Raymond 1905 trilobite
 Phacopida - Pterygometopidae
"Pterygometopus annulatus" = Calyptaulax annulata
"Pterygometopus annulatus" = Calyptaulax annulata Raymond 1905 trilobite
 Asaphida - Asaphidae
Isotelus harrisi Raymond 1905 trilobite
Asaphus beta trilobite
 Asaphida - Raphiophoridae
Lonchodomas chaziensis2 Shaw 1968 trilobite
see Shaw (1968, p. 34)
Ostracoda
 Palaeocopida -
Eurychilina latimarginata Raymond 1905 ostracod
 Leperditicopida - Leperditiidae
Leperditia canadensis Jones 1858 ostracod
Leperditia limatula Raymond 1905 ostracod
Strophomenata
 Strophomenida - Rafinesquinidae
Rafinesquina alternata, "Rafinesquina champlainensis" = Macrocoelia champlainensis
"Rafinesquina champlainensis" = Macrocoelia champlainensis Raymond 1902
 Strophomenida - Strophomenidae
"Rafinesquina incrassata" = Dactylogonia incrassata
"Rafinesquina incrassata" = Dactylogonia incrassata Hall 1847
Rhynchonellata
 Pentamerida - Camerellidae
Camerella ventricosa1 Cooper 1956
 Orthida - Plaesiomyidae
"Plaesiomys platys" = Multicostella platys
"Plaesiomys platys" = Multicostella platys Billings 1859
 Orthida - Plectorthidae
"Hebertella vulgaris" = Mimella vulgaris
"Hebertella vulgaris" = Mimella vulgaris Raymond 1911
Bivalvia
 Protobranchia - Ctenodontidae
Ctenodonta peracuta Raymond 1905 clam
Gastropoda
 Euomphalina - Macluritidae
Maclurites magnus Le Sueur 1818 snail
 Euomphalina - Raphistomatidae
Raphistoma stamineum Hall 1847 snail
Stenolaemata
 Cryptostomida -
Anthozoa
 Cystiphyllida - Fletcheriidae
 Rugosa -
Stylaraea parva Lambe 1899 horn coral