ammonites
Kayser-Leith area (Paleocene of the United States)

Where: Grant County, North Dakota (46.3° N, 101.7° W: paleocoordinates 51.4° N, 77.8° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Cannonball Member (Lance Formation), Danian (65.5 - 61.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified shale and lithified limestone

• "The Cannonball marine member is composed predominantly of dark sandy shale or shaly sandstone with a subordinate amount of dark-yellow and gray sandstone. It also contains some thin limestones. All the strata are lenticular in character."

Size class: macrofossils

Primary reference: T. W. Vaughan. 1920. Corals from the Cannonball marine member of the Lance Formation. United States Geological Survey Professional Paper 128:61-66 [W. Kiessling/U. Merkel] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87483: authorized by Wolfgang Kiessling, entered by Uta Merkel on 18.03.2009