Where: New Mexico (36.4° N, 104.6° W: paleocoordinates 38.3° N, 70.5° W)
• coordinate based on nearby landmark
• basin-level geographic resolution
When: Fort Hays Limestone Member (Niobrara Formation), Late/Upper Turonian (93.5 - 89.3 Ma)
• STRATIGRAPHIC RELATIONS: From the Fort Hays Limestone Mbr of the Niobrara Fm, which regionally overlies the Carlisle Shale . AGE: Turonian, on the basis of inoceramid and ammonite biostratigraphy. STRATIGRAPHIC POSITION: List representative of the Fort Hays Limestone.
• member-level stratigraphic resolution
Environment/lithology: deep subtidal shelf; lithified, gray limestone
Size class: macrofossils
Preservation: cast, mold/impression
Reposited in the UNSM
Collection methods: surface (in situ), ,
• COLLECTORS: Scott, Cobban, Merewether, and Buckhorn (1984). REPOSITORY: USNM.
Primary reference: G. R. Scott, W. A. Cobban, and E. A. Merewether. 1986. Stratigraphy of the Upper Cretaceous Niobrara Formation in the Raton basin, New Mexico. New Mexico Bureau of Mines and Mineral Resources Bulletin 115:1-34 [A. Hendy/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 87845: authorized by Austin Hendy, entered by Austin Hendy on 26.03.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Inoceramus incertus clam
Inoceramus parvus clam | |
Cephalopoda | |
Prionocyclus quadratus Cobban 1953 ammonite | |
Baculites yokoyamai Tokunga and Shimizu 1926 ammonite | |
Eutrephoceras sp. Hyatt 1894 nautiloid |