Where: New York (43.2° N, 75.5° W: paleocoordinates 29.2° S, 59.3° W)
• coordinate based on political unit
When: Denley Limestone Formation, Middle Ordovician (471.8 - 460.9 Ma)
• "Trenton Group. M. Ord."
Environment/lithology: sand shoal; carbonate and shale
Primary reference: J. J. Sepkoski Jr. 1998. Rates of speciation in the fossil record. Philosophical Transaction of the Royal Society Biological Sciences 353(1366):315-326 [J. Sepkoski/M. Sommers/A. Clement] more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 430: authorized by Jack Sepkoski, entered by Mike Sommers on 08.12.1998, edited by Pete Wagner