KG. 1657 - Fossil Bluff Fm, Alexander Island (Cretaceous of Antarctica)

Where: Antarctica (72.0° S, 69.0° W: paleocoordinates 70.4° S, 42.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Fossil Bluff Formation, Aptian (125.0 - 113.0 Ma)

• LITHOSTRATIGRAPHY: Fossil Bluff Formation. AGE: Aptian. Justification not stated, presumably based on Belemnite and Ammonoid index taxa. STRATIGRAPHIC POSITION: Collection lies within upper c. 1.2 km of the approximately 4 km thick formation.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified mudstone

• TECTONIC SETTING: "from forearc environment".
• SPECIFIC LITHOLOGY: Unknown lithology, probably mudstone. Formation includes "mainly mudstones, tuffaceous sandstones, and conglomerates". LITHIFICATION: Lithified, based on figured specimens, many of which remain encased in matrix.

Size class: macrofossils

Reposited in the BAS

Collection methods: quarrying,

• COLLECTOR: Members of British Antarctic Survey. REPOSITORY: British Antarctic Survey, Cambridge. Some material reposited in BMNH, GSSA (Geological Survey of S Australia), HM (Hunterian Museum, Glascow), MUGD (Melbourne University Geology Dept.), NMV (National Museum of Victoria), SAM (South Australian Museum), and SM (Sedgewick Museum, Cambridge).

Primary reference: P. Doyle. 1987. The Cretaceous Dimitobelidae (Belemnitida) of the Antarctic Peninsula region. Palaeontology 30(1):147-177 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64198: authorized by Austin Hendy, entered by Austin Hendy on 04.09.2006, edited by Marko Manojlovic

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Includes belemnites, ammonites, and bivalves, despite publication focus towards belemnitida. NOMENCLATURE: Authoritative publication, utilising species-level designations.
Rhynchonellata
 Terebratulida - Terebratulidae
Terebratula lamellosa Thomson and Owen 1979
 Terebratulida - Chlidonophoridae
Prochlidonophora muirwoodae Thomson and Owen 1979
Lingulata
 Lingulida - Lingulidae
Glottidia rostrata n. sp. Thomson and Owen 1979
"Glottidia" rostrata
Cephalopoda
 Belemnitida - Dimitobelidae
"Tetrabelus willeyi n. sp." = Dimitobelus (Tetrabelus)
"Tetrabelus willeyi n. sp." = Dimitobelus (Tetrabelus) belemnite
 Ammonitida - Oppeliidae
Aconeceras sp., "? Theganeceras sp." = Theganoceras
Aconeceras sp. Hyatt 1903 ammonite
"? Theganeceras sp." = Theganoceras Whitehouse 1926 ammonite
 Ammonitida - Lytoceratidae
"Lytoceras sp." = Lytoceras, "Eulytoceras sp." = Lytoceras
"Lytoceras sp." = Lytoceras Suess 1865 ammonite
"Eulytoceras sp." = Lytoceras Suess 1865 ammonite