Chazy village, Day Point Formation (Ordovician of the United States)

Where: New York (44.9° N, 73.5° W: paleocoordinates 27.9° S, 54.7° W)

• coordinate estimated from map

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

• "Lower Chazy", in Raymond (1916)

Environment/lithology: marine; limestone

Size classes: macrofossils, mesofossils

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 171713: authorized by Björn Kröger, entered by Björn Kröger on 17.07.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Cheiruridae
"Heliomeroides akocephala" = Heliomeroides teres4
"Heliomeroides akocephala" = Heliomeroides teres4 Evitt 1951 trilobite
see Shaw (1968, p. 69)
Strophomenata
 Strophomenida - Glyptomenidae
"Strophomena prisca" = Glyptomena prisca3
"Strophomena prisca" = Glyptomena prisca3 Raymond 1905
Rhynchonellata
 Rhynchonellida - Sphenotretidae
"Zygospira acutirostris" = Sphenotreta acutirostris3
"Zygospira acutirostris" = Sphenotreta acutirostris3 Hall 1847
 Orthida - Hesperorthidae
"Orthis costalis" = Hesperorthis costalis2
"Orthis costalis" = Hesperorthis costalis2 Hall 1847
Bivalvia
 Myalinida - Ambonychiidae
"Clionychia marginalis" = Cleionychia marginalis, "Ambonychia curvata" = Ambonychiopsis curvata
"Clionychia marginalis" = Cleionychia marginalis Raymond 1905 clam
"Ambonychia curvata" = Ambonychiopsis curvata Raymond 1905 clam
Gastropoda
 Euomphalina - Platyceratidae
"Eunema leptonotum" = Cyclonema leptonotum1
"Eunema leptonotum" = Cyclonema leptonotum1 Raymond 1905 snail
 Euomphalina - Raphistomatidae
Scalites angulatus2 Emmons 1842 snail
Tergomya
 Archinacellida - Archinacellidae
"Palaeacmaea irregularis" = Floripatella irregularis1
"Palaeacmaea irregularis" = Floripatella irregularis1 Raymond 1905
 Scenelloidea - Scenellidae
Scenella pretensa1 Raymond 1905