Unit 8, Lopez de Bertodano FM., Seymour Island: Maastrichtian, Antarctica

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Malacostraca - Decapoda - Nephropidae
Hoploparia stokesi (Weller 1903)
Sabellida - Serpulidae
Rotularia zinsmeisteri
Cephalopoda - Ammonitida - Kossmaticeratidae
Maorites densicostatus (Kilian and Reboul 1909)
Cephalopoda - Ammonitida - Pachydiscidae
Pachydiscus riccardi (Macellari 1986)
Gastropoda
Gastropoda indet. Cuvier 1795
Gastropoda - Eucyclidae
Amberleya spinigera
Gastropoda - Cerithiidae
Cerithium sp. Bruguière 1789
Gastropoda - Turritellidae
Mesalia sp. Gray 1847
Gastropoda - Cassidae
Cassidaria mirabilis
Gastropoda - Ranellidae
Trachytriton sp. Meek 1864
Gastropoda - Aporrhaidae
Perissoptera sp. Tate 1865
Gastropoda - Neogastropoda - Fasciolariidae
Fusinus phillippiana
Taioma charcotianus
Graphidula cf. culbertoni
Scaphopoda - Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758
Bivalvia - Ostreida - Malleidae
Pulvinites antarctica
Bivalvia - Arcida - Cucullaeidae
Cucullaea sp. Lamarck 1801
Cucullaea antarctica Wilckens 1907
Bivalvia - Cardiida - Lahillidae
Lahillia larseni (Sharman and Newton 1897)
Bivalvia - Thraciida - Thraciidae
Thracia askinae
Bivalvia - Carditida - Astartidae
Dozyia drygalskiana
Bivalvia - Trigoniida - Trigoniidae
Oistotrigonia pygscelium
Bivalvia - Nuculida - Nuculidae
Leionucula suboblonga (Wilckens 1907)
unclassified
Grossuvrites gemmatus
Vanikarpsis sp.
Linuparis macellarii
Surbula nucleus
Oligopycha cf. concinnus
Columbaria sp.
Eslaevitrigonia regina
Reptilia
Reptilia indet. Laurenti 1768
see common names

Geography
Country:Antarctica State/province:Seymour Island
Coordinates: 64.3° South, 56.8° West (view map)
Paleocoordinates:62.5° South, 67.5° West
Geographic resolution:small collection
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Maastrichtian 10 m.y. bin: Cretaceous 8
Key time interval: Maastrichtian
Age range of interval: 72.1 - 66 m.y. ago
Stratigraphy
Formation:Lopez de Bertodano
Local section:Section C of Macellari 1984 Local bed:Unit 8
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: This is restricted to Unit 8, of the 10 units into which the Lopez de Bertodano FM was divided.
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:63518
Authorizer:L. Ivany Enterer:L. Ivany
Research group:marine invertebrate
Created:2006-08-15 15:48:18 Last modified:2006-08-15 18:48:18
Access level:the public Released:2006-08-15 15:48:17
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]