Hochalm B10 (Triassic of Austria)

Where: Austria (47.7° N, 12.7° E: paleocoordinates 31.0° N, 17.0° E)

• small collection-level geographic resolution

When: Hochalm, Unit 2 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: marine; carbonate

• Gervillia-Atreta Biofacies
• thin bed of carbonate material

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 32889: authorized by David Bottjer, entered by Nicole Bonuso on 17.07.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Dimyidae
Atreta intusstriata Emmrich 1853 scallop
 Pectinida - Limidae
Plagiostoma punctata Sowerby 1818 file clam
 Pectinida - Pectinoidae
"Chlamys valoniensis" = Praechlamys valoniensis
"Chlamys valoniensis" = Praechlamys valoniensis Defrance 1825 scallop
 Ostreida - Pteriidae
Rhaetavicula cont. Cox 1961 pearl oyster
 Ostreida - Gryphaeidae
 Cardiida - Palaeocarditidae
Palaeocardita austr. Conrad 1867 clam
 Trigoniida - Myophoriidae
"Lyriomyophoria sp." = Elegantinia
"Lyriomyophoria sp." = Elegantinia Waagen 1907 clam
Rhynchonellata
 Terebratulida - Angustothyrididae
Rhaetina gregaria Suess 1854