ammonites
Kossen C7 (Triassic of Austria)

Where: Austria (47.7° N, 12.5° E: paleocoordinates 31.8° N, 16.9° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Holchalm, Unit 2 Member (Kossen Formation), Rhaetian (205.6 - 201.6 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: marine and marl

• Gervillia-Atreta biofacies
• alternation of limestones with marls

Size class: macrofossils

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 32877: authorized by David Bottjer, entered by Nicole Bonuso on 16.07.2003