La Meseta Fm Telm 2: Ypresian, Antarctica

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Struthioptera camachoi Zinsmeister 1977
Scaphopoda - Gadilida - Gadilidae
Cadulus (Cadulus) antarctotubulus n. sp.
Gastropoda - Neotaenioglossa - Calyptraeidae
Zegalerus coniculus n. sp.
Gastropoda - Turritellidae
Colposigma euthenia n. sp. Stilwell and Zinsmeister 1992
Gastropoda - Naticidae
Polinices (Polinices) cf. subtenuis (Ihering 1907)
Gastropoda - Vermetidae
Serpulorbis hormathos n. sp.
Gastropoda - Ficidae
Austroficopsis wimani n. gen., n. sp. Stilwell and Zinsmeister 1992
Austroficopsis seymourensis n. gen., n. sp. Stilwell and Zinsmeister 1992
Gastropoda - Neogastropoda - Costellariidae
Conomitra cernohorskyi n. sp.
Conomitra iredalei n. sp.
Austrosullivania lata n. gen., n. sp.
Gastropoda - Neogastropoda - Mitridae
Mitra (Eumitra) monoplicata n. sp.
Mitra (Eumitra) sadleri n. sp.
Gastropoda - Neogastropoda - Fasciolariidae
Taioma bicarinata n. sp.
Taioma antarctocarinata n. sp.
Gastropoda - Neogastropoda - Buccinidae
Austrofusus (Nassicola) blakei n. sp.
Austrofusus (Nassicola) casei n. sp.
Pseudofax weddellensis n. sp.
Pseudofax suroinflatus n. sp.
Austrobuccinum tuberosum n. gen., n. sp. Stilwell and Zinsmeister 1992
Pareuthria mccormicki n. sp.
Eobuccinella brucei n. gen., n. sp. Stilwell and Zinsmeister 1992
Aeneator delli n. sp.
Aeneator huttoni n. sp.
Penion australocapax n. sp.
Zelandiella verrucosa n. sp.
Gastropoda - Neogastropoda - Nassariidae
Sudonassarius antarctohimaleos n. gen., n. sp. Stilwell and Zinsmeister 1992
Gastropoda - Neogastropoda - Volutidae
Lyria antarctica n. sp. Stilwell and Zinsmeister 1992
Eoscaphella fordycei n. gen., n. sp. Stilwell and Zinsmeister 1992
Gastropoda - Neogastropoda - Muricidae
Lenitrophon suteri n. sp.
Caelobassus radwini n. gen., n. sp. Stilwell and Zinsmeister 1992
Gastropoda - Neogastropoda - Turridae
Gemmula askinae n. sp.
Gastropoda - Neogastropoda - Borsoniidae
Zemacies finlayi n. sp.
Gastropoda - Struthiolariidae
Antarctodarwinella ellioti Zinsmeister 1976
Gastropoda - Heterostropha - Mathildidae
Gegania (Tubena) antarctodema n. sp.
synonym of Gegania
Gastropoda - Heterostropha - Pyramidellidae
Turbonilla (Ptycheulimella) aersispira n. sp.
original and current combination Ptycheulimella
Agatha scotti n. sp.
Gastropoda - Heterostropha - Acteonidae
"Crenilabium" suromaximum n. sp.
Gastropoda - Trochidae
Calliostoma (Calliostoma) striphna n. sp.
Gastropoda - Vasidae
Tudicla doylei n. sp.
Gastropoda - Opisthobranchia - Cylichnidae
Scaphander (Kaitoa) duseni n. sp.
Gastropoda - Opisthobranchia - Bullidae
Bulla glacialis
Bivalvia - Nuculanida - Malletiidae
Australoneilo rossi Zinsmeister 1984
Bivalvia - Nuculida - Nuculidae
Nucula (Leionucula) nova (Wickens 1911)
Bivalvia - Thraciida - Periplomatidae
Periploma topei
Bivalvia - Cardiida - Sportellidae
Anisodonta truncilla n. sp.
Bivalvia - Cardiida - Veneridae
"Cyclorismina" marwicki Zinsmeister 1984
Eurhomalea newtoni (Wilckens 1911)
Cockburnia lunulifera (Wilckens 1911)
Bivalvia - Cardiida - Mactridae
Mactra irizari Wilckens 1912
Nymphactra jonasseni n. gen., n. sp. Stilwell and Zinsmeister 1992
Bivalvia - Cardiida - Lahillidae
Lahillia wilckensi Zinsmeister 1984
Bivalvia - Lucinida - Lucinidae
Saxolucina sharmani (Wilckens 1911)
Bivalvia - Carditida - Crassatellidae
Eucrassatella wilckensi (Median and Rinaldi 1978)
Bivalvia - Mytilida - Mytilidae
Modiolus thomsoni
Bivalvia - Pectinida - Limidae
Acesta bibbyi n. sp. Stilwell and Zinsmeister 1992
Bivalvia - Ostreida - Pteriidae
Electroma notiala Stilwell and Zinsmeister 1992
Bivalvia - Ostreida - Ostreidae
Ostrea antarctica Zinsmeister 1984
Bivalvia - Arcida - Cucullaeidae
Cucullaea raea
see common names

Geography
Country:Antarctica State/province:Seymour Island
Coordinates: 64.3° South, 56.8° West (view map)
Paleocoordinates:63.4° South, 63.9° West
Basis of coordinate:stated in text
Geographic resolution:basin
Time
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
Key time interval:Ypresian
Age range of interval:56.00000 - 47.80000 m.y. ago
Stratigraphy
Formation:La Meseta Member:Telm 2
Stratigraphic resolution:formation
Lithology and environment
Primary lithology:planar lamination,deformed bedding,fine,concretionary unlithified silty,calcareous sandstone
Secondary lithology:gray silty claystone
Includes fossils?Y
Lithology description: rare shell beds fine stratification muddy "thick beds of laminated, fine-grained sand and silty sands with sparse, silty, clay beds. The sands are typically flaser-bedded and convolute laminated; these alternate with dark grey, friable mudstones which coarsen upward. Some horizons contain iron-rich and moderately well-indurated sandstone and siltstone intervals." fossils not common but locally abundant in calcareous silty intervals
Environment:coastal indet.
Taphonomy
Modes of preservation:body,original aragonite,original calcite
Size of fossils:macrofossils
Associated major elements:many
Collection methods and comments
Collection excludes:all microfossils,some macrofossils,difficult macrofossils
Collection methods:bulk,surface (float),surface (in situ),field collection
Reason for describing collection:biostratigraphic analysis
Taxonomic list comments:Mollusks only
Metadata
Database number:63548
Authorizer:L. Ivany Enterer:L. Ivany
Research group:marine invertebrate
Created:2006-08-16 11:39:43 Last modified:2006-08-16 14:39:44
Access level:the public Released:2006-08-16 11:39:42
Creative Commons license:CC BY
Reference information

Primary reference:
18284. J. D. Stilwell and W. J. Zinsmeister. 1992. Molluscan Systematics and Biostratigraphy. Antarctic Research Series, AGU 55 [L. Ivany/L. Ivany/M. Uhen]