Where: San Juan County, New Mexico (37.0° N, 109.0° W: paleocoordinates 41.0° N, 75.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Scaphites ventricosus ammonoid zone, Mancos Shale Formation, Middle Coniacian (89.3 - 85.8 Ma)

• 2.4 m above the Stray sandstone bed

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale

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 100151: authorized by Wolfgang Kiessling, entered by Uta Merkel on 30.11.2010

Creative Commons license: CC BY (attribution)