Where: Alexander Island, Antarctica (70.8° S, 68.5° W: paleocoordinates 61.2° S, 28.2° W)

• local area-level geographic resolution

When: Himalia Ridge Formation, Tithonian (152.1 - 145.0 Ma)

• Jurassic-Cretaceous boundary located in this formation; the entire formation is approximately 2250m thick; the upper 1000m of the formation lack fossils, apart from the very topmost 50m where ammonites reappear (listed in Himalia Ridge2 collection)

• formation-level stratigraphic resolution

Environment/lithology: sandstone and conglomerate

Primary reference: P. J. Butterworth, J. A. Crame, P. J. Howlett and D. I. M. Macdonald. 1988. Lithostratigraphy of Upper Jurassic-Lower Cretaceous strata of eastern Alexander Island, Antarctica. Cretaceous Research 9(3):249-264 [M. Patzkowsky/K. Layou/A. Clement]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2074: authorized by Mark Patzkowsky, entered by Karen Layou on 21.06.1999

Creative Commons license: CC BY (attribution)