Where: Lewis and Clark County, Montana (47.0° N, 112.5° W: paleocoordinates 52.6° N, 75.6° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Desmoscaphites bassleri ammonoid zone, Virgelle Sandstone Formation (Montana Group), Late/Upper Santonian (85.8 - 83.5 Ma)
• top of Virgelle Sandstone
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified sandstone
Size class: macrofossils
Preservation: cast, mold/impression
Primary reference: I. Walaszczyk and W. A. Cobban. 2006. Palaeontology and stratigraphy of the Middle-Upper Coniacian and Santonian inoceramids of the US Western Interior. Acta Geologica Polonica 56(3):241-348 [W. Kiessling/U. Merkel]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 100168: authorized by Wolfgang Kiessling, entered by Uta Merkel on 01.12.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Sphenoceramus gilli n. sp.
Sphenoceramus gilli n. sp. Walaszczyk and Cobban 2006 clam |