Macrofossil assemblage from Jason Peninsula - R.6647 (Jurassic to of Antarctica)

Where: Antarctica (66.0° S, 60.6° W: paleocoordinates 56.3° S, 32.6° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Latady Formation, Kimmeridgian to Kimmeridgian (157.3 - 145.0 Ma)

• "early Tithonian" is used in a local, Antarctic sense. It refers to the perisphinctid-dominated ammonite fauna which occurs in the lower levels of the extensive Himalia Ridge Formation, Fossil Bluff Group, Alexander Island.

Environment/lithology: foreshore; lithified, fine-grained, medium, volcaniclastic, gray sandstone

• grey, grey-green and grey-brown sandstones

Size class: macrofossils

Preservation: mold/impression, trace, recrystallized

Collection methods: all specimens are housed in the collections of the Geoscience Division, British Antarctic Survey, Cambridge

Primary reference: T. R. Riley, J. A. Crame, M. R. A. Thomson and D. J. Cantrill. 1997. Late Jurassic (Kimmeridgian-Tithonian) macrofossil assemblage from Jason Peninsula, Graham Land: evidence for a significant northward extension of the Latady Formation. Antarctic Science 9(4):434-442 [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 36767: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 15.02.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
"Pectinid" sp.
close to Camptonectes (Camptonectes) robusta
Bivalvia
 Pectinida - Oxytomidae
Oxytoma sp. Meek 1864 scallop
 Pectinida - Buchiidae
Malayomaorica malayomaorica Krumbeck 1923 scallop
 Carditida - Astartidae
 Pholadida - Pleuromyidae
Pleuromya sp. Agassiz 1845 clam
 Trigoniida - Myophorelloidae
Vaugonia ? sp. Crickmay 1930 clam
 Trigoniida - Megatrigonioidae
Cephalopoda
 Ammonitida - Perisphinctidae
Cycadeoideopsida
 Bennettitales -
Williamsonia sp. Carruthers 1870