La Meseta Fm Telm 2: Ypresian, Antarctica

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