Level-bottom marine community, Black River Group (Chaumont Fm.) (Ordovician of the United States)

Where: New York (43.2° N, 75.5° W: paleocoordinates 27.4° S, 53.4° W)

• coordinate based on political unit

When: Chaumont Formation (Black River Group), Blackriveran (457.3 - 449.6 Ma)

• "M. Ord., Black River Group"

Environment/lithology: deep subtidal shelf; peloidal carbonate

• "Carbonates (pelletal mud) subtidal, deeper than other communities (BA4). stable shelf"

Size class: macrofossils

Primary reference: K. R. Walker. 1972. Community Ecology of the Middle Ordovician Black River Group of New York State. Geological Society of America Bulletin 83(8):2499-2524 [M. Uhen/J. Ju/J. Ju]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 325: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Walker 1972 GSA Bull.; Cooper 1956 (brachiopods)"
Show authors, comments, and common names
unclassified
  -
? Palaeocapida indet.
? Palaeocapida indet.
originally entered as "? Palaeocapida indet."
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
Stenolaemata
 Trepostomata - Aisenvergiidae
Eridotrypa sp.
Eridotrypa sp. Ulrich 1893
originally entered as "Erydotrypa sp."
 Trepostomata - Trematoporidae
Batostoma sp.
Batostoma sp. Ulrich 1882
Rhynchonellata
 Rhynchonellida - Rhynchotrematidae
Rhynchotrema sp.
Rhynchotrema sp. Hall 1860
 Atrypida - Anazygidae
Zygospira sp.
Zygospira sp. Hall 1862
 Orthida - Draboviidae
Pionodema sp.
Pionodema sp. Foerste 1912
 Orthida - Dalmanellidae
"Dalmanella rogata" = Paucicrura rogata
"Dalmanella rogata" = Paucicrura rogata Sardeson 1892
 Orthida - Plectorthidae
Doleroides sp.
Doleroides sp. Cooper 1930
2 species
 Orthida - Glyptorthidae
Glyptorthis sp.
Glyptorthis sp. Foerste 1914
2 species
 Orthida - Hesperorthidae
Hesperorthis sp.
Hesperorthis sp. Schuchert and Cooper 1931
 Orthida - Plaesiomyidae
Valcourea sp.
Valcourea sp. Raymond 1911
 Pentamerida - Camerellidae
Camerella sp.
Camerella sp. Billings 1859
Strophomenata
 Strophomenida - Strophomenidae
Strophomena sp.
Strophomena sp. Rafinesque and De Blainville 1824
 Strophomenida - Rafinesquinidae
Leptaena sp., Rafinesquina sp.
Leptaena sp. Dalman 1828
Rafinesquina sp. Hall and Clarke 1892
2 species
Gastropoda
 Euomphalina - Macluritidae
Maclurites sp.
Maclurites sp. Le Sueur 1818 snail
Bivalvia
 Cyrtodontida - Cyrtodontidae
Cyrtodonta sp.
Cyrtodonta sp. Billings 1858 clam
Cephalopoda
 Endocerida - Endoceratidae
Endoceras sp.
Endoceras sp. Hall 1847
 Orthocerida - Orthoceratidae
Michelinoceras sp.
Michelinoceras sp. Foerste 1932
 Actinocerida - Actinoceratidae
Actinoceras ruedemanni
Anthozoa
 Stauriida - Lambelasmatidae
Lambeophyllum profundum
Lambeophyllum profundum Conrad 1843 horn coral
 Sarcinulida - Billingsariidae
Foerstephyllum halli
Foerstephyllum halli tabulate coral
Stromatoporoidea
 Labechiida - Stromatoceriidae
Stromatocerium rugosum
Stromatocerium rugosum Hall 1847 stromatoporoid sponge