Where: Navajo County, Arizona (36.1° N, 109.9° W: paleocoordinates 39.3° N, 75.9° W)
• coordinate stated in text
• small collection-level geographic resolution
When: lower shale Member (Mancos Shale Formation), Middle Turonian (93.5 - 89.3 Ma)
• Collection from the Mammites nodosoides Zone
• bed-level stratigraphic resolution
Environment/lithology: basinal (siliceous); lithified shale
Size classes: macrofossils, microfossils
Preservation: mold/impression, original calcite
Reposited in the NMMNH
Collection methods: bulk, quarrying,
Primary reference: J. I. Kirkland. 1996. Paleontology of the Greenhorn cylcothem (Cretaceous: late Cenomanian to middle Turonian) at Black Mesa, northeastern Arizona. New Mexico Museum of Natural History and Science Bulletin 9:1-131 [P. Harries/P. Harries/P. Harries]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 53933: authorized by Peter Harries, entered by Peter Harries on 18.09.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Turritella cobbani n. sp.
Turritella cobbani n. sp. turret shell |