Where: San Luis Potosi, Mexico (21.3° N, 98.8° W: paleocoordinates 16.7° N, 51.0° W)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Upper Member (Taman Formation), Early/Lower Tithonian (150.8 - 145.5 Ma)

• Subzone 4 beta, estimated position in section

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified shale and lithified lime mudstone

Size class: microfossils

Preservation: original silica

Collection methods: bulk, chemical, hydrochloric,

Primary reference: Q. Yang. 1993. Taxonomic studies of Upper Jurassic (Tithonian) Radiolaria from the Taman Formation, east-central Mexico. Palaeoworld (special issue) 3:1-164 [W. Kiessling/W. Kiessling/W. Kiessling] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 51776: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 16.06.2005