Eocene Erratics: Mt. Discovery, McMurdo Sound: Late/Upper Eocene, Antarctica

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Malacostraca - Decapoda - Callianassidae
Callianassa symmetricus n. sp.
Feldmann and Zinsmeister 1984
Maxillopoda
Austrobalanus antarcticus n. sp.
Bivalvia - Cardiida - Veneridae
"Eurhomalea" claudiae
Willis and Stilwell 2000
found in boulder E312
Gastropoda
Gastropoda indet. Cuvier 1797
Willis and Stilwell 2000
found in boulder E312
Chondrichthyes - Lamniformes - Mitsukurinidae
Carcharias cf. macrota (Agassiz 1843)
Long and Stilwell 2000 2 elements
recombined as Odontaspis macrota
Site T, E145, Site J. E151
Chondrichthyes - Carchariniformes - Triakidae
Galeorhinus sp. de Blainville and Prévost 1816
Long and Stilwell 2000 1 element
Site T, E145
Actinopteri - Gadiformes - Gadidae
Gadidae indet. Rafinesque 1810
Long and Stilwell 2000 1 element
Site T, E372
Reptilia - Avetheropoda - Pelagornithidae
Pelagornithidae indet. Fürbringer 1888
Jones 2000 1 specimen
found in boulder A303
Reptilia - Crocodilia
Crocodilia indet. Owen 1842
Willis and Stilwell 2000 1 specimen
spelled with current rank as Crocodylia
found in boulder E312
see common names

Geography
Country:Antarctica
Coordinates: 78.4° South, 165.0° East (view map)
Paleocoordinates:78.9° South, 157.3° East
Basis of coordinate:based on nearby landmark
Time
Period:Paleogene Epoch:Eocene
Stage:Priabonian 10 m.y. bin:Cenozoic 3
Key time interval:Late/Upper Eocene
Age range of interval:37.20000 - 33.90000 m.y. ago
Stratigraphy
Stratigraphy comments: Bartonian to Early Priabonian
Lithology and environment
Lithology description: Isolated erratics of arkosic grits derived from weathering and erosion of ancient granitic and gabbroic rocks. Medium to light grey-brown, poorly sorted, moderately indurated, arkosic grits.
Environment:marine indet.
Geology comments: Inferences of shallow, warm water conditions.
Taphonomy
Modes of preservation:body,original calcite
Size of fossils:macrofossils
Preservation of anatomical detail:variable
Fragmentation:frequent
Collection methods and comments
Collection excludes:all microfossils,some macrofossils
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collection method comments: All collections made by Jeffrey D. Stilwell and party, University of Nebraska-Lincoln Expeditions (1993-1995).
Taxonomic list comments:Reported mollusks, dinoflagellates, and pollen are not included in the taxonomic list.
Metadata
Database number:43030
Authorizer:L. Ivany, M. Uhen Enterer:C. Visaggi, M. Uhen
Modifier:C. Visaggi Research group:marine invertebrate
Created:2004-08-09 12:03:15 Last modified:2004-08-09 15:06:24
Access level:the public Released:2004-08-09 12:03:15
Creative Commons license:CC BY
Reference information

Primary reference:

11406.1% J. S. Buckeridge. 2000. A new species of Austrobalanus (Cirripedia, Thoracia) from Eocene erratics, Mount Discovery, McMurdo Sound, East Antarctica. Antarctic Research Series 76:329-333 [L. Ivany/C. Visaggi/C. Visaggi]

Secondary references:

71652 R. Feldmann and W. J. Zinsmeister. 1984. First Occurrence of Fossil Decapod Crustaceans (Callianassidae) from the McMurdo Sound Region, Antarctica. Journal of Paleontology 58(4):1041-1045 [M. Uhen/M. Uhen]
19820 C. M. Jones. 2000. The first record of a fossil bird from East Antarctica. Paleobiology and Paleoenvironments of Eocene Rocks, McMurdo Sound, East Antarctica. Antarctic Research Series. 76:359-364 [M. Uhen/M. Uhen/M. Uhen]
19822 D. J. Long and J. D. Stilwell. 2000. Fish remains from the Eocene of Mount Discovery, East Antarctica. Paleobiology and Paleoenvironments of Eocene Rocks, McMurdo Sound, East Antarctica. Antarctic Research Series 76:349-353 [M. Uhen/M. Uhen/M. Uhen]
19823 C. E. Schweitzer and R. M. Feldmann. 2000. Callichirus? symmetricus (Decapoda: Thalassinoidea) and associated burrows, Eocene, Antarctica. Paleobiology and Paleoenvironments of Eocene Rocks, McMurdo Sound, East Antarctica. Antarctic Research Series. 76:335-347 [M. Uhen/M. Uhen]
198185% 53400P. M. A. Willis and J. D. Stilwell. 2000. A probable piscivorous crocodile from Eocene deposits of McMurdo Sound, East Antarctica. Paleobiology and Paleoenvironments of Eocene Rocks, McMurdo Sound, East Antarctica . Antarctic Research Series 76:355-358 [M. Uhen/M. Uhen/M. Uhen]