Black River intertidal community, Black River Group (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: Black River Group, Blackriveran (460.9 - 449.5 Ma)

• "M. Ord."

Environment/lithology: peritidal; carbonate

• "algalaminites (carbonate); thin bedded, mud-cracked; birdseye. intertidal. (BA1) 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: paleoecologic analysis

PaleoDB collection 322: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "K.R. Walker, 1973. Strat. and env. sed. of M. Ord. Lack River Grp. in the type area- New York State. NY State Mus. and Sci. Serv. Bull. 419,43. K.R. Walker, 1972. Community ecology of the M. Ord. Black River Group of NY. GSA Bull. Cooper, 1956 (some brachs thrown in)"
 Leperditicopida - Leperditiidae
Leperditia sp. Rouault 1851 ostracod
 Proetida - Bathyuridae
Bathyurus extans Hall 1847 trilobite
 Cyrtodontida - Cyrtodontidae
? Cyrtodonta sp. Billings 1858 clam
originally entered as "? Cyrtodona sp."
 Rhynchonellida - Ancistrorhynchidae
"Ancistrorhynchia sp." = Ancistrorhyncha
"Ancistrorhynchia sp." = Ancistrorhyncha Ulrich and Cooper 1942
originally entered as "Ancistrothyncha sp."
 Atrypida - Anazygidae
Zygospira sp. Hall 1862