cs-9. Leptochilodiscus punctulatus beds. Maiden Bridge road cut, East Chatham (Cambrian of the United States)

Where: Columbia County, New York (42.4° N, 73.5° W: paleocoordinates 34.1° S, 88.0° W)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Bonnia - Olenellus trilobite zone, Stissing Formation, Lenian (516.0 - 510.2 Ma)

• PJW: This should be the Stissing.

Environment/lithology: offshore shelf; green limestone

• "sh and ls; ls beds up to 15 cm thick, fine grained; green shale. ? Shelf BA4?"
• Medium-gray, granular, 1-3 inches thick limestone beds

Size class: macrofossils

Primary reference: F. Rasetti. 1967. Lower and Middle Cambrian Trilobite Faunas from the Taconic Sequence of New York. Smithsonian Miscellaneous Collections 152(4):1-111 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 225082: authorized by Pete Wagner, entered by Pete Wagner on 24.04.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

• "J.H. Bird and F.Rasetti 1968. Lower, middle and upper Cambrian fauna in the Taconic sequence of eastern New York: stratigraphic and biostratigraphic significance. GSA spec. Paper 113 66p."
 Corynexochida - Dorypygidae
Bonnia "sp. undet." Walcott 1916 trilobite
 Redlichiida - Olenellidae
Olenellus "sp. no. 2", "Paedeumias "sp. no. 1"" = Olenellus (Paedeumias), "Paedeumias "sp. no. 2"" = Olenellus (Paedeumias), "Paedeumias "sp. no. 3"" = Olenellus (Paedeumias)
Olenellus "sp. no. 2" Hall 1861 trilobite
"Paedeumias "sp. no. 1"" = Olenellus (Paedeumias) Walcott 1910 trilobite
"Paedeumias "sp. no. 2"" = Olenellus (Paedeumias) Walcott 1910 trilobite
"Paedeumias "sp. no. 3"" = Olenellus (Paedeumias) Walcott 1910 trilobite
 Agnostida - Weymouthiidae
 Agnostida - Calodiscidae