Sobral FM., Seymour Island: Paleocene, Antarctica

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Pleurotomariidae
Pleurotomaria larseniana
Gastropoda - Turritellidae
Mesalia sp. Gray 1847
Gastropoda - Aporrhaidae
Perissoptera nordenskjoldi Wilckens 1910
recombined as Struthiochenopus nordenskjoldi
Gastropoda - Neogastropoda - Fasciolariidae
Paleopsephaea sp. Wade 1926
Gastropoda - Neogastropoda - Conidae
Marshallaria sp. Finlay and Marwick 1937
Gastropoda - Cassidae
Cassis sp. Scopoli 1777
Gastropoda - Naticidae
Eunaticina arctowskiana
Bivalvia - Arcida - Cucullaeidae
Cucullaea ellioti Zinsmeister and Macellari 1988
Bivalvia - Pectinida - Limidae
Acesta shackletoni
Acesta webbi Zinsmeister and Macellari 1988
Bivalvia - Ostreida - Pinnidae
Pinna sp. Linnaeus 1758
Pinna freneizae
Bivalvia - Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758
Bivalvia - Lucinida - Lucinidae
Lucina sp. Bruguière 1797
Bivalvia - Thraciida - Periplomatidae
Periploma sp. Schumacher 1816
Bivalvia - Cardiida - Veneridae
Marwickia woodburnei Zinsmeister and Macellari 1988
Bivalvia - Cardiida - Lahillidae
Lahillia huberi Zinsmeister and Macellari 1988
Lahillia larseni (Sharman and Newton 1897)
Bivalvia - Nuculida - Nuculidae
Leionucula sp. Quenstedt 1930
Leionucula hunickeni Zinsmeister and Macellari 1988
Leionucula suboblonga (Wilckens 1907)
Bivalvia - Nuculanida - Malletiidae
Australoneilo sp. Zinsmeister 1984
Australoneilo casei Zinsmeister and Macellari 1988
Malacostraca - Decapoda - Nephropidae
Metanephrops jenkinsi Feldmann 1989
Hoploparia stokesi (Weller 1903)
original and current combination Glyphea stokesi
Crinoidea - Isocrinida - Isselicrinidae
Isselicrinus antarcticus
see common names

Geography
Country:Antarctica State/province:Seymour Island
Coordinates: 64.3° South, 56.8° West (view map)
Paleocoordinates:63.5° South, 66.2° West
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Paleocene
10 m.y. bin:Cenozoic 1
Key time interval:Paleocene
Age range of interval:66.00000 - 56.00000 m.y. ago
Stratigraphy
Formation:Sobral
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: Sobral Fm. falls avove the Lopez de Bertodano Fm, which contains the K/T boundary near its top.
Lithology and environment
Primary lithology:bioturbation,glauconitic poorly lithified silty sandstone
Secondary lithology: siltstone
Includes fossils?Y
Includes fossils?Y
Lithology description: siltstones, silty concretionary sandstones, glauconitic sandstones, some volcanoclastic component
Environment:offshore
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection excludes:all microfossils
Collection methods:bulk,field collection
Reason for describing collection:biostratigraphic analysis
Collection method comments: All macrofossils were collected
Metadata
Database number:63516
Authorizer:L. Ivany Enterer:L. Ivany
Modifier:L. Ivany Research group:marine invertebrate
Created:2006-08-15 15:37:39 Last modified:2006-08-15 18:46:06
Access level:the public Released:2006-08-15 15:37:39
Creative Commons license:CC BY
Reference information

Primary reference:

531. W. J. Zinsmeister, R. M. Feldmann, M. O. Woodburne and D. H. Elliot. 1989. Latest Cretaceous/Earliest Tertiary Transition on Seymour Island, Antarctica. Journal of Paleontology 63(6):731-738 [L. Ivany/E. Kowalski/J. Alroy]