Where: Antarctica (64.2° S, 57.8° W: paleocoordinates 62.5° S, 68.2° W)
• coordinate stated in text
• local area-level geographic resolution
When: Lopez de Bertodano Formation, Early/Lower Maastrichtian (70.6 - 66.0 Ma)
• STRATIGRAPHIC RELATIONS: From the Lopez de Bertodano Fm, which is unconformably overlain by glacigenic diamictites and by the James Ross Island Volcanic Group. AGE: Early Maastrichtian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From a the lower (90-140 m) part of Unit A.
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; lithified, silty sandstone and lithified sandstone
Size class: macrofossils
Preservation: cast, mold/impression
Collection methods: surface (in situ),
• COLLECTOR: E. B. Olivero, D. R. Martinioni, and F. J. Mussel. REPOSITORY: Not stated, but presumably the Centro de Investigaciones en Recurso Geologicos (CIRGEO)..
Primary reference: E. B. Olivero, D. R. Martinioni, and F. J. 1992. Upper Cretaceous sedimentology and biostratigraphy of western Cape Lamb (Vega Island, Antarctica). Implications of sedimentary cycles and evolution of the basin. Geologia de la Isla James Ross 47-166 [A. Hendy/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 83551: authorized by Austin Hendy, entered by Austin Hendy on 22.08.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Malacostraca | |
Decapoda indet. Latreille 1802 decapod | |
Sedentaria | |
Bivalvia | |
"Eselaevitrigonia regina" = Laevitrigonia (Eselaevitrigonia)
"Eselaevitrigonia regina" = Laevitrigonia (Eselaevitrigonia) clam | |
Pholadomya gracilis clam | |
Panopea sp. Menard 1807 clam | |
Lahillia sp. Cossmann 1899 clam | |
? Cyclorisma sp. Dall 1902 venus clam | |
Cucullaea sp. Lamarck 1801 clam | |
"Pycnodonte cf. vesiculosa" = Pycnodonte (Phygraea) vesicularis vesiculosa
"Pycnodonte cf. vesiculosa" = Pycnodonte (Phygraea) vesicularis vesiculosa Sowerby 1822 oyster | |
Pinna sp. Linnaeus 1758 oyster | |
Entolium sp. Meek 1865 scallop | |
Modiolus pontotocensis mussel | |
Cephalopoda | |
Maorites tuberculatus Howard 1958 ammonite
Maorites weddelliensis Macellari 1986 ammonite | |
Eutrephoceras sp. Hyatt 1894 |