ammonites
Liospira community, upper Denley Ls., New York (Ordovician of the United States)

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

• "coarse and fine massive and thin biosparites and biomicrites; some interbedded shale. -pararipples, sheet lamination, x-bedding, graded beds, intraclasts. shoal facies, algae common."

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