A18. South end of Valcour Island, Day 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: Day Point Formation (Chazy Group), Chazy (466.0 - 457.5 Ma)

Environment/lithology: marine; limestone

• Thin-bedded, fairly pure, light-gray limestone containing many fossils.

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 172226: 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
Thaleops ovata Conrad 1843 trilobite
"Illaenus globosus" = Stenopareia globosus Billings 1859 trilobite
 Phacopida - Pterygometopidae
"Pterygometopus annulatus" = Calyptaulax annulata
"Pterygometopus annulatus" = Calyptaulax annulata Raymond 1905 trilobite
 Phacopida - Cheiruridae
"Pseudosphaerexochus chazyensis" = Kawina chazyensis
"Pseudosphaerexochus chazyensis" = Kawina chazyensis Raymond 1905 trilobite
 Phacopida - Pliomeridae
Pliomerops canadensis Billings 1859 trilobite
 Harpida - Harpetidae
Hibbertia valcourensis2 Shaw 1968 trilobite
see Shaw (1968, p. 53)
 Asaphida - Asaphidae
Isotelus harrisi Raymond 1905 trilobite
Asaphus alpha trilobite
Asaphus beta trilobite
Asaphus gamma trilobite
 Asaphida - Raphiophoridae
Lonchodomas chaziensis2 Shaw 1968 trilobite
see Shaw (1968, p. 34)
Ostracoda
 Palaeocopida -
Eurychilina latimarginata Raymond 1905 ostracod
 Leperditicopida - Leperditiidae
Strophomenata
 Billingsellida - Clitambonitidae
"Clitambonites multicostus" = Atelelasma multicosta
"Clitambonites multicostus" = Atelelasma multicosta Hudson 1905
 Strophomenida - Rafinesquinidae
"Rafinesquina champlainensis" = Macrocoelia champlainensis
"Rafinesquina champlainensis" = Macrocoelia champlainensis Raymond 1902
 Strophomenida - Glyptomenidae
"Rafinesquina distans" = Glyptomena distans
"Rafinesquina distans" = Glyptomena distans Raymond 1906
 Strophomenida - Strophomenidae
"Rafinesquina incrassata" = Dactylogonia incrassata
"Rafinesquina incrassata" = Dactylogonia incrassata Hall 1847
Rhynchonellata
 Pentamerida - Camerellidae
Camerella ventricosa1 Cooper 1956
 Orthida - Orthidae
"Hebertella exfoliata" = Orthambonites exfoliata
"Hebertella exfoliata" = Orthambonites exfoliata Raymond 1905
Bivalvia
 Protobranchia - Ctenodontidae
Ctenodonta peracuta Raymond 1905 clam
Stenolaemata
  - Phylloporinidae
 Cryptostomida -
Eocrinoidea
  -