Kossen B3 (Triassic of Austria)

Where: Austria (47.7° N, 12.5° E: paleocoordinates 31.1° N, 16.9° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Sagenites reticulatus zone, Hochalm,Unit2 Member (Kossen Formation), Rhaetian (208.5 - 201.3 Ma)

• Age assignment changed from Norian to Rhaetian by W. Kiessling. Following the re-definition of the Rhaetian stage by Dagys and Dagys (1994, Global correlation of the terminal Triassic: Memoires de Geologie (Lausanne), v. 22, p. 25-34) the Kossen Formation is now considered to be entirely Rhaetian in age (McRoberts pers. comm., Kiessling et al. 2007).

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; carbonate and marl

• Gervillia-Atreta biofacies
• alternation of limestones with marls

Primary reference: R. Golebiowski. 1989. Stratigraphie und Biofacies der Koessener Formation (Obertrias, Nordliche Kalkalpen). Ph.D. thesis, University of Vienna, Austria 1-253 [F. Fursich/A. Tomasovych/S. Hicks]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 28581: authorized by Franz Fursich, entered by Adam Tomasovych on 20.02.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Nuculanida - Nuculanidae
Nuculana claviformis pointed nut clam
 Ostreida - Bakevelliidae
"Bakevellia praecursor" = Bakevellia (Bakevelloides) praecursor Quenstedt 1858 oyster
Gervillia inflata Schafhaeutl 1851 oyster
 Cardiida - Palaeocarditidae
Palaeocardita austriaca Hauer 1853 clam
 Cardiida - Arcticidae
 Carditida - Myophoricardiidae
Myophoriopis isoceles clam
[entered as Myophoriopsis isoceles]