Also known as Locality 1
Where: Sonora, Mexico (30.4° N, 112.0° W: paleocoordinates 10.1° S, 106.7° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Nevadella trilobite zone, Unit 3 Member (Puerto Blanco Formation), Meishucunian to Meishucunian (541.0 - 520.0 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; limestone and silty shale
Size class: macrofossils
Preservation: mold/impression
Collection methods: surface (float), acetic,
• Specimens assigned IGM numbers are deposited at the Instituto de Geologia, Cuidad Universitaria, DelegaciĆ³n de Coyoacan
Primary reference: M. A. S. McMenamin. 1987. Lower Cambrian trilobites, donation, and correlation of the Puerto Blanco formation, Sonora Mexico. Journal of Paleontology 61(4):738-749 [N. Heim/C. Lombardi]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 210979: authorized by Noel Heim, entered by Cole Lombardi on 22.06.2020
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Judomia sp. Lermontova 1943 trilobite | |
|